Microwave Journal articles from January 2001

Microwave Journal archives from January 2001

Microwave Radar imaging and Advanced Concepts.(Brief Article)
January 1, 2001... Roger J. Sullivan Artech House Inc. 475 pages; $95, [pound]65 ISBN: 0-89006-341-9 Microwave radar continues to evolve in both capability land complexity. This book provides a view of present technology and where this highly exciting...

ERRATUM.(Abstract)
January 1, 2001... In "A Voltage Variable Attenuator Using Silicon PIN Diodes and a Passive GaAs MMIC in a Plastic SMT Package," a product feature by M/ACOM Inc. that appeared in the November issue of Microwave Journal, the two equations appearing in Figure 1...

Advanced Array Systems, Applications and RF Technologies.(Brief Article)
January 1, 2001... Nicholas Fourikis Academic Press 362 pages; $79.95 ISBN:0-12-262942-6 The focus of this book is in the processing of signals derived from active array systems at their RF and intermediate frequencies, as opposed to earlier books that...

High Efficiency C- and Ku-band Traveling Wave Tubes.(Brief Article)
January 1, 2001... The model TH 3975(X), TH 3976(L) and TH 3977(L) high efficiency traveling wave tubes (TWTs) operate in the extended C and Ku-bands, as well as the specific band for DBS applications. Due to their high output power, these TWTs cover all...

Switch Mode DC Power Supply.(Brief Article)
January 1, 2001... The model 1692 compact, lightweight switching DC power supply utilizes a standard 115 V AC outlet as the power source and provides a variable voltage output of 3 to 15 V DC, or a fixed 13.8 V DC (selectable), and up to 40 A at continuous...

Impedance Test System.(Brief Article)
January 1, 2001... The model CITS500s controlled impedance test system for PCB production environments is now available with four channels. The new version allows permanent connection of more than one test probe, for efficient testing of coupons with both...

Programmable Precision Pulse Generator.(Brief Article)
January 1, 2001... The model PB-5 programmable precision pulse generator includes a full-featured, highly flexible ramp generator and complete programmability. As a precision pulse generator, the PB-5 surpasses or equals all existing designs in the important...

Test Cable Assemblies.(Brief Article)
January 1, 2001... The RHT (replaceable head test) series cable assemblies have a variety of phase matched and replaceable connector beads on an armored flexible cable. The RHT 300 and RHT 400 feature a double shielded high performance, high frequency cable...

Active Load Pull System for Wireless Applications.(Brief Article)
January 1, 2001... This line of active tuning test sets (ATTS) for independent fundamental and harmonic load pull in the characterization of power devices uses a proprietary design for the absolute stability of the active loop up to higher reflection coefficient...

Portable RF Analyzer.(Brief Article)
January 1, 2001... The model 7500 RF field strength analyzer combines the functionality of a graphic RF spectrum analyzer, frequency counter and tunable RF monitor in a single hand-held instrument. It covers the 100 kHz to 2060 MHz frequency range, and is...

Single Channel S-band Synthesizer.(Brief Article)
January 1, 2001... The model STEL-9941 high performance single channel S-band synthesizer combines direct digital synthesis (DDS) with microwave mix/divide circuits to accomplish very advanced performance specifications. The frequency resolution is 0.7 Hz, with...

Dual-channel Slot Synthesizer.(Brief Article)
January 1, 2001... The model PTS DLx10 dual-channel slot synthesizer contains two fully independent high performance, low phase noise, fast-switching slot frequency synthesizers, each covering a 10 MHz decade between 0.1 and 100 MHz, with 0.1 Hz resolution. The...

Low Jitter, J-type VCXOs.(Brief Article)
January 1, 2001... This series of low jitter J-type VCXOs are available at frequencies from 1.024 to 170 MHz and adhere to a package footprint compatible with the industry-common surface-mount J-lead package. Typical jitter performance is [less than] 0.5 ps rms...

Module for GPIO Mode.(Brief Article)
January 1, 2001... This module for the GPIO mode is designed to interface with the Zeus radio modem, which allows remote switching for controls such as security doors, gates or anywhere a remote switch is needed. The relay module is currently available for the...

VCXOs for Telecom/Datacom.(Brief Article)
January 1, 2001... The model VCXO-C3 voltage controlled oscillators (VCXO) offers an outstanding cost-to-performance ratio and features an inexpensive metal DIP package. It is ideal for telecommunications, telephony and datacom applications such as set top boxes....

Low Jitter VCXOs.(voltage controlled crystal oscillators )(Brief Article)
January 1, 2001... The Panther[TM] line of miniature surfacemount, voltage controlled crystal oscillators (VCXOs) exhibit extremely clean, exceptionally low jitter properties. This line provides one of the lowest jitter rates ([less than] 1 ps) available. Panther...

SONET Semiconductor Packaging.(synchronous optical network)(Brief Article)
January 1, 2001... This full line of synchronous optical network (SONET) semiconductor packaging ranges from OC-48, OC-192 solutions, to the research and development on the next generation OC-768. These ceramic, glass and metal-based packages are used in the...

Laser Drilling Machine.(LPKS MicroLineDrill 600 )(Brief Article)
January 1, 2001... The LPKS MicroLineDrill 600 laser drilling machine can structure as well as drill HDI boards. This system offers a specially developed laser for drilling blind holes. The drilling only requires one single process step because the system works...

Automated Modeling Program.(ParIC's software information)(Brief Article)
January 1, 2001... ParICs automated modeling program for popular IC packaging types such as quad flat packs (QFPs), thin small outline packages (TSOPs), small outline integrated circuits (SOICs) and dual inline packages (DIPs) offers a unique mix of automation,...

Integrated 300-950 MHz Double Superhet Receiver Chips.(model TH7107 )
January 1, 2001... The model TH7107 through TH71082 chip family enables designers to match their HF transmitter system requirements by each application's frequency range, modulation scheme or output power requirements. The family has been specifically designed...

Low Capacitance Varactors.(model SMV1232-079 varactor diodes)(Brief Article)
January 1, 2001... The model SMV1232-079, SM1263-079 and SMV1405-079 low capacitance silicon varactor diodes are designed for VCO designs in IMT-2000 (WCDMA/UMTS) applications. These var-actors have low series resistance for low phase noise and low capacitance...

Millimeter-wave Scanning Antenna.(antenna product information)(Brief Article)
January 1, 2001... This millimeter-wave scanning antenna is specifically configured for automotive radars. A scanning antenna is the crucial element that determines the overall performance of automotive radar systems. It is distinguished by fast scanning rates,...

Power Amplifier.(model 30-1-200-45-R )(Brief Article)
January 1, 2001... The model 30-1-200-45-R high performance 200 W RF power amplifier covers the 1 to 30 MHz frequency range with 45 dB of gain. Features include automatic current limiting, forced-air cooling, current meter, over-current and thermal protection....

High Power Frequency Power Amplifier.(AMF-8F-265325-80-29P high frequency power amplifier )(Brief Article)
January 1, 2001... The model AMF-8F-265325-80-29P high frequency power amplifier operates in the 26.5 to 32.5 GHz range. The unit features an output power of +30 dBm typical (+29 dBm min), 8.0 dB (typ) noise figure and 30 dB (min) gain. The amplifier is available...

SiGe HBT MMIC Amplifiers.(silicon germanium amplifiers)(Brief Article)
January 1, 2001... The model SGL-0163 and model SGL-0263 silicon germanium (SiGe) HBT MMIC amplifiers offer very low noise, high input intercept point products aimed at applications in 2G/3G wireless infrastructure and fixed wireless applications. The SGL family...

Planar Doped Barrier Detectors.(Brief Article)
January 1, 2001... The model 603SK planar doped barrier detector operates over the entire frequency range of 10 MHz to 40 GHz. The unit is available with an input connector of 3.5 nun, 2.4 mm or K male. Frequency response is [+ or -]0.3 dB to 20 GHz, [+ or -]0.6...

Blindmate Connector.(Brief Article)
January 1, 2001... The BMA series of blindmate connectors are qualified to MIL-PRF-31031 with the interface in accordance with MIL-STD-348. The connectors offer the advantage of push-on mating while providing superior microwave performance. The connectors provide...

Fifth Order Filter.(Brief Article)
January 1, 2001... The models MAX7418 to MAX7425 fifth order, switched-capacitor, lowpass filters operate from a single supply of +5 V (MAX7422 to MAX7425) or +3 V (MAX7418 to MAX7421). These Bessel, Butter-worth and elliptic filters support corner frequencies as...

Miniature Electromechanical Switches.(Brief Article)
January 1, 2001... The MSM1 line of ultra-small, connectorized single pole, single throw mechanical switches have a frequency range from DC to 2 GHz, making them ideal for many wired and wireless RF communications applications. The switches are capable of being...

UHF Male Crimp Connector.(Brief Article)
January 1, 2001... The model EZ-400-UM non-solder EZ install Type-UHF male connector is in response to demand for a non-solder FL-259 UHF connector for LMR-400 flexible low loss coaxial cable. The connector eliminates the need to solder the center conductor and...

7-16 Panel Receptacle.(Brief Article)
January 1, 2001... This 7-16 panel receptacle features a safety interlock switch that prevents people from touching a live high power, high current RF contact. The interlock switch panel receptacle only completes a circuit when the male center contact is fully...

LGA Connectors.(Brief Article)
January 1, 2001... The MicroConn[R] connection solution for land grid array (LGA) applications offers OEM designers a highly reliable and economical solderless interconnect for microprocessors, ASICs and other large packages. It is ideal for computer, server,...

Switch-isolator Integrated Assembly.(Brief Article)
January 1, 2001... The model 249D90900 iso-switch addresses insertion loss, weight and size limitation issues. This integrated assembly of an electromechanical RF switch and isolator performs a redundancy function in an LNA RF circuit. By combining the switch and...

Relay Series.(Brief Article)
January 1, 2001... This design enhanced, surface-mount technology, coaxial RF 1P1T RSS relay series provides a low cost option in the DC to 4.0 GHz frequency band. This SMT device is available with 50 [omega] impedance and failsafe to open actuation with standard...

Phase Shifter for Clock and Data Recovery.(Brief Article)
January 1, 2001... The model 6705K OC 48 & OC 192 protocol electromechanical phase shifter operates over the DC to 26.5 GHz range and offers phase adjustment of 40[degrees] per GHz. SWR is 1.6 (max) and insertion loss is 1.25 dB (max). Available options include a...

Low Priced Coaxial Loads.(Brief Article)
January 1, 2001... The model 462-1F3 SMA-male coaxial termination is ideally suited for low power applications dissipating 1 W average power (250 W peak) with SWR of 1.05 (typ) to 3 GHz. The model 401-1F3 is an N-male coaxial termination providing high value and...

Low Profile Directional Coupler.(Brief Article)
January 1, 2001... The model ADC-6-10-75 wideband directional coupler is designed for 75 [omega] CATV applications in the 20 to 1000 MHz frequency range. Designed with an ultra-low 0.108" profile, these couplers free engineers from the expensive task of...

DC-6 GHz Microminiature Connectors.(Brief Article)
January 1, 2001... These microminiature MMCX connectors conform to CECC 22340 standard interface specification to insure performance and intermateability. This series of connectors is designed for high density packages requiring good RF performance. Engineers...

UMTS Band Diplexer.(Brief Article)
January 1, 2001... The model SL-8028 UMTS band diplexer for 3G applications operates over the 1920 to 1980 and 2110 to 2170 MHz frequency bands with loss of [less than] 1.0 dB. Return loss is 16 dB (min) in the passband. The passband-to-passband isolation will...

A DC TO KA-BAND LOW COST SURFACE MOUNTABLE RF-VIA[TM] PACKAGE.(Brief Article)
January 1, 2001... The wireless market, including cellular phones, local multipoint distribution systems, point-to-point radio programs, broadcasting systems and data exchange systems (such as Bluetooth), is experiencing explosive growth. As the number of...

A LIGHTWEIGHT, LOW COST SPECTRUM ANALYZER FOR MOBILE COMMUNICATIONS APPLICATIONS.(new product introduction)(Brief Article)(Product Announcement)
January 1, 2001... A new spectrum analyzer has been introduced that has been specifically designed for mobile communications applications, such as service shops, basestation installation, repair and maintenance, and education. The model 2399 spectrum analyzer is...

LOW COST ELECTRONICALLY SCANNING ANTENNAS FOR WIRELESS COMMUNICATIONS APPLICATIONS.(DRWiN antennas introduction)(Brief Article)(Product Announcement)
January 1, 2001... Success in today's fixed wireless communications market depends on many factors. From a technology perspective, systems today and in the future will be required to adapt to broadband dynamic needs, requiring systems that can support rapid...

25 W Load.(model 25-CT-FA 25 )(Brief Article)
January 1, 2001... The model 25-CT-FA 25 W conduction cooled load is designed for volume production applications. It is a compact, 50 [omega] load with a frequency range and SWR of DC to 1 GHz and 1.15 (max) and 1 to 3 GHz at 1.25 (max). SMA female or male...

Double Bandpass Filter.(electronic filter information)(Brief Article)
January 1, 2001... The model 16D BCVSP-2317/2348/C4.5-N cross coupled double bandpass filter uses "Super Q" Perovskite dielectric resonators, which yields a typical passband loss of 1.0 dB with a percent bandwidth of 0.19 along with a 30 dB shape factor of 1.33....

RAWCON2000 CONFERENCE REPORT.(wireless communications conference)(Brief Article)
January 1, 2001... The 2000 IEEE Radio and Wireless Conference (RAWCON2000), held in Denver, CO, from September 10 to 13, explored interdisciplinary aspects of RF technology and wireless communications. Approximately 250 people from 18 countries took in a program...

2000 WIRELESS WORKSHOP REVIEW.(wireless communications conference)(Brief Article)
January 1, 2001... The 2000 Wireless Workshop was held October 22 to 25 in Sedona, AZ. This was the 12th annual workshop, an event that has evolved into a technical forum and interactive discussion group for design and manufacturing engineers engaged in the...

REDUCED FILTER REQUIREMENTS USING AN ULTRA LOW NOISE MODULATOR.(mobile communications product development)
January 1, 2001... Each new generation of the mobile phone is specified to support multiple standards and provide new and more complex applications, such as higher data rate capability. At the same time, it is expected that improvements be made to talk time,...

Rockwell Collins.(receives contract from US Air Force)(Brief Article)
January 1, 2001... The US Air Force has awarded Rockwell Collins an engineering services contract to provide continued technical support of the avionics systems installed on its fleet of C/KC-135. As part of the contract, Rockwell Collins will provide engineering...

PERSONNEL.(brief industry personnel information)
January 1, 2001... * Harmonix Corp. has promoted Dana E. Wheeler to chief operating officer. Previously, Wheeler served as VP of business development. * Smart antenna start-up Antenova has announced its management team. Graham Cooley was appointed CEO,...

Andrew Corp.(sales report information)(Brief Article)(Statistical Data Included)
January 1, 2001... Andrew Corp. reports record sales of $283.7 M for the fourth quarter ended September 30, 2000, compared to $215.1 M for the same period last year. Net income was $24.6 M (30 [cts.]/diluted share) compared to $13.4 M (16[cts.]/diluted share) for...

American Microsystems Inc. (AMI).(Brief Article)
January 1, 2001... American Microsystems Inc. (AMI) reports record sales of more than $100 M for the third quarter, up 51 percent compared to the same period last year.

ANADIGICS Inc.(Brief Article)
January 1, 2001... ANADIGICS Inc. reports record sales of $51.1 M for the third quarter ended September 30, 2000, compared to $35.5 M for the same period last year. Net income was $7.1 M (23[cts.]/diluted share), compared to $2.5 M (10[cts.]/diluted share) for...

American Technical Ceramics Corp.(Brief Article)
January 1, 2001... American Technical Ceramics Corp. reports sales of $20.9 M for the first quarter ended September 30, 2000, compared to $11.9 M for the same period last year. Net income was $2.6 M (33[cts.]/common share), compared to $830 K (11[cts.]/common...

Alpha Industries.(Brief Article)
January 1, 2001... Alpha Industries has delivered additional volume shipments of GaAs and RF components for Metricom Inc.'s high speed Ricochet [TM] mobile data network. Alpha's shipments include GaAs switches, silicon RF semiconductor devices and other...

Quad Systems Corp.(Brief Article)
January 1, 2001... Quad Systems Corp. will cooperate with Ryoko Sangyo, a Mitsubishi company, to develop the Japanese market for soldering ovens. The two companies are committed to define and respond to the Japanese market's requirements.

CODE DOMAIN ANALYSIS ON W-CDMA USER EQUIPMENT TRANSMITTERS.(Brief Article)
January 1, 2001... Wideband CDMA (W-CDMA) is one of several digital cellular technologies that is competing for the third generation (3G) cellular market. The earlier Japanese W-CDMA trial system and the European Universal Mobile Telephone System (UMTS) have each...

ASYMMETRIC COPLANAR STRIP ANALYSIS INCLUDING CONDUCTOR BACKING AND UPPER SHIELDING.(Brief Article)
January 1, 2001... Coplanar strip transmission lines (CPS) are widely used, for example, whenever balanced lines are required to feed printed circuit board (PCB) antennas or in balanced mixers, or as interconnecting lines in high speed digital circuits. In such...

A GENERAL DESIGN PROCEDURE FOR BANDPASS FILTERS DERIVED FROM LOW PASS PROTOTYPE ELEMENTS: PART II.(Brief Article)
January 1, 2001... Part II of this bandpass filter tutorial features several examples that illustrate the general design procedure for bandpass filters using resonators and coupling methods of different types. BANDPASS FILTER DESIGN The general bandpass...

BLUETOOTH-ENABLED MICROWAVE OVENS FOR EMI COMPATIBILITY.(Brief Article)
January 1, 2001... With Bluetooth[TM] initiatives placing bite marks on wireless communications, an associated problem that looms in the horizon in the form of EMI is attributed to electromagnetic emanations from high power ISM devices, such as microwave ovens....

THE FIRST INTERNATIONAL VACUUM ELECTRONICS CONFERENCE IN REVIEW.(Brief Article)
January 1, 2001... With nearly 400 participants from industry, government and academia from almost 20 countries, the first International Vacuum Electronics Conference (IVEC) burst to life in Monterey, CA on May 2 to 4, 2000. IVEC 2000, sponsored by the IEEE...

HISTORY OF ULTRA WIDEBAND COMMUNICATIONS AND RADAR: PART I, UWB COMMUNICATIONS.(Brief Article)
January 1, 2001... Although there is considerable overlap in the subcomponents of ultra wideband (UWB) communications and UWB radar/sensor systems, it is natural to treat the history of the two systems separately for several reasons. Whereas a UWB communications...

SEMX Corp.(Brief Article)
January 1, 2001... SEMX Corp. reports record sales of $19.1 M for the third quarter, a 16.8 percent increase from the same period last year. Net income was $314 K (2[cts.]/share).

Advanced Power Technology Inc.(Brief Article)
January 1, 2001... Advanced Power Technology Inc. reports sales of $12.1 M for the third quarter ended September 30, 2000, compared to $7.3 M for the same period last year. Net income was $1.3 M (16[cts.]/diluted share), compared to $118 K (2[cts.]/diluted share)...

Ansoft Corp.(Brief Article)
January 1, 2001... Ansoft Corp. reports sales of $9.7 M for the second quarter of FY 2001 ended October 31, 2000, compared to $7.4 M for the same period last year. Pro forma net income was $773 K (6[cts.]/diluted share), compared to a pro forma net loss of $26 K...

Merrimac Industries Inc.(Brief Article)
January 1, 2001... Merrimac Industries Inc. reports sales of $6.44 M for the third quarter ended September 30, 2000, compared to 5.33 M for the same period last year. Net income was $219 K (9[cts.]/diluted share), compared to $119 K (6[cts.]/diluted share) for...

Microwave Power Devices Inc.(Brief Article)
January 1, 2001... Microwave Power Devices Inc. reports sales of $13.008 M for the third quarter, ended September 30, 2000, compared to 16.417 M for the same period last year. Net income was $277 K (3[cts.]/diluted share), compared to $345 K (3[cts.]/diluted...

Illinois Superconductor Corp.(Brief Article)(Statistical Data Included)
January 1, 2001... Illinois Superconductor Corp. reports sales of $22 K for the third quarter ended September 30, 2000, compared to $1.13 M for the same period last year. Consolidated net loss was $5.28 M (16[cts.]/share), which included $1.62 M of non-cash...

Cree Inc.(Brief Article)
January 1, 2001... The Board of Directors at Cree Inc.'s has approved a two-for-one stock split. The record date for the split was December 1, 2000, and the common stock was expected to begin trading on a post-split basis on December 11.

LCC International Inc.(Brief Article)
January 1, 2001... Wireless voice and data turnkey technical consultant LCC International Inc. has been selected by Egypt's Misrfone Telecommunications Co., S.A.E., Click GSM to provide operation and maintenance services for approximately 275 sites within its...

Superconductor Technologies Inc.(Brief Article)
January 1, 2001... Superconductor Technologies Inc. has received an order for $850 K of SuperFilter [R] Systems from a continuing customer to be deployed primarily in suburban and urban sectored CDMA cell sites across a digital network. The order brings total...

Harmonix Corp.(Brief Article)
January 1, 2001... Harmonix Corp. has received the first Part 15 Type Certification from the Federal Communications Commission (FCC) for its flagship product, GigaLink, [TM] the world's fastest point-to-point wireless link to fiber.

Rohde & Schwarz and Tektronix.(Brief Article)
January 1, 2001... Rohde & Schwarz and Tektronix celebrated their seventh year in alliance for the development and distribution of leading-edge technology products for the wireless communications test market.

Elanix Inc.(Brief Article)
January 1, 2001... Elanix Inc. announced that its system design and simulation software System View by ELANIX [R] and Real Time DSP Architect has passed Texas Instruments Inc. eXpressDSP [TM] compliance testing. This strengthens the company's partnership with...

American Microsystems Inc. (AMI).(Brief Article)(Statistical Data Included)
January 1, 2001... American Microsystems Inc. (AMI) has delivered two million control-logic application-specific integrated circuits (ASICs) for use with the Intel [R] and mobile Pentium [R] III processors featuring Intel SpeedStep [TM] technology. The company...

QUALCOMM Inc. and Spirent Communications.(CDMA test equipment license agreement)(Brief Article)
January 1, 2001... QUALCOMM Inc. and Spirent Communications have entered into a CDMA test equipment license agreement. Under the terms of the agreement, QUALCOMM has granted Spirent a royalty-bearing license to use its CDMA technology and patents to design and...

NurLogic Design Inc.(agreement with IBM)(Brief Article)
January 1, 2001... NurLogic Design Inc. has signed an agreement with IBM to offer high performance standard cell and I/O components to customers of IBM's silicon germanium (SiGe) 0.25-micron process technology. Under this agreement, IBM will have access to...

Schaffner EMC Inc.(distribution agreement )(Brief Article)
January 1, 2001... Schaffner EMC Inc. has expanded its distribution network for electromagnetic interference filter products through a North American distribution agreement with Pioneer-Standard Electronics Inc.

DaimlerChrysler and Vishay Intertechnology Inc.(licensing agreement)(Brief Article)
January 1, 2001... DaimlerChrysler and Vishay Intertechnology Inc. have signed a licensing agreement that will enable Vishay to undertake the high volume manufacture of semiconductor products using Daimler Chrysler's Silicon Carbide technology.

RF Monolithics Inc. (RFM).(manufacturing agreements )(Brief Article)
January 1, 2001... RF Monolithics Inc. (RFM) has signed manufacturing agreements with Automated Technology (Phil.) Inc. (ATEC) and Cirtek Electronics Corp.

Lucent Technologies and Ensemble Communications Inc.(broadband wireless solutions )(Brief Article)
January 1, 2001... Lucent Technologies and Ensemble Communications Inc. have entered into an original equipment manufacturer (OEM) agreement to provide complete broadband wireless solutions to LMDS carriers and other broadband wireless spectrum license holders...

MEGA Industries.(Brief Article)
January 1, 2001... MEGA Industries has formed an alliance with A-Alpha Waveguide Co., El Segundo, GA, to become exclusive North American distributor of A-Alpha products.

Solid State Electronics Center and RF Integration Inc.(Brief Article)
January 1, 2001... Solid State Electronics Center and RF Integration Inc. have combined forces to develop a line of high performance, low cost standard RFIC products for the wireless and broadband communications industries. The products will integrate digital and...

Semi Dice Inc.(Brief Article)
January 1, 2001... Semi Dice Inc. has been named the US franchised distributor of commercial die and wafer products for HEXFET [R] Power MOSFET, IGBT, control IC, Schottky diode and ultra-fast recovery diode semiconductor products from International Rectifier...

Wireless Technologies Corp.(Brief Article)
January 1, 2001... Wireless Technologies Corp. has accepted an order of several thousand diplexers from Cellular Specialties Inc. (CSI). These diplexers will be used in CSI's SMR high performance repeaters and cellular extenders.