IN MY OPINION

Evaluating Our Industry’s Health Requires a Broad Perspective
By John Farley, Director of Marketing, Pasternack Enterprises

As most RF and microwave companies are privately held and industry analysts rarely track sales of microwave components other than semiconductors and interconnects, determining the health of an industry as diverse as ours is extremely difficult.
Read More...

FROM WHERE WE SIT

Uncertain Times for DefenseIn Defense of DARPA; Lamenting Bell Labs
By Barry Manz

A federal agency like DARPA is a sitting duck for politicians and assorted other critics. It has come up with some truly bizarre programs over years that ultimately either delivered no tangible results, were canceled before they could cause any damage, or attempted to answer questions that nobody was asking or needed answers to. Read More...


CURRENT ISSUE PRODUCTS


E-Band Active X5 Multiplier
Model SFA-743843516-12SF-N1 is an E-band X5 active multiplier with center frequency at 79 GHz with minimum +/-5 GHz operational bandwidth. It converts 14.8 to 16.8 GHz/+5 dBm input signal to deliver 74 to 84 GHz frequency band with more than +16 dBm power.
Sage Millimeter

Hand-Flex™ Coaxial Cable
Covering DC to 12.5 GHz, this 8” coaxial cable, 141-8SMNB+, has a bulkhead Female Type-N connector at one end and SMA-Male at the other. Features include low loss, excellent return loss, hand formable, and an 8mm bend radius for tight installations.
Mini-Circuits

Phase Trimmer Series
This new phase trimmer series is designed for RF applications where phase match between two cables is needed for proper system performance. Phase trimmers, offered from DC to 50 GHz, will give an accurate phase adjustment over a specified frequency range.
RLC Electronics

Planar Monolithics Industries
Model PTRAN-100M18G-SFB-3UVPX-MAH is a transceiver covering the frequency range of 100 MHz to 18 GHz. The transceiver fits into a 3U Open VPX form factor utilizing the high speed VITA 67 RF connector.
Planar Monolithics Industries

SMT High-Power Attenuators
Now available with full design support capabilities are three new SMT high-power attenuators from Anaren. These 30 to 50W devices are high-performance, high-power chip attenuators covering DC to 3.0 GHz and feature high return loss and small footprints.
Richardson RFPD

See all products in this issue


INDUSTRY NEWS
 


Sprint To Eliminate Thousands of Antenna Sites

Sprint To Eliminate Thousands of Antenna Sites

Sprint is replacing its 3G and Nextel networks with Network Vision, one of the results of which is that it will probably reduce the company's total number of towers by more than 44%, from 68,000 to 38,000 sites. Sites that serve Nextel (9.600 in all) will be decommissioned by the end of the year according to a transcript of the carrier's fourth quarter earnings call. Sprint now leases its required 38,000 sites for Network Vision and hopes to have 12,000 higher-density sites on the air by the end of this year. The goal for having the entire network deployed is the end of 2013 or the first half of 2014.

The company's transition to Network Vision will take place in two steps. If there are six existing CDMA antennas on a site (two per sector), one CDMA antenna will be removed and two LTE antennas will be deployed per sector. Then all CDMA antennas will be taken down, leaving six LTE antennas. Sprint signed agreements with the major tower companies late last year and early this year announced it will deploy LTE in Atlanta, Dallas, Houston, Baltimore, Kansas City and San Antonio by the middle of the year by midyear.



 

 

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MILITARY MICROWAVE DIGEST


MMD March 2014
New Military Microwave Digest
WHITE PAPERS

The Design of Ultra Narrowband Amplifiers Using Small-Signal Varactor Upconverters
This paper presents a method of realizing tunable microwave amplifiers with ultra narrow bandwidths that can be less than 0.5% by the use of a varactor up-converter (UC).
Planar Monolithics

Directivity and VSWR Measurements
Return loss and VSWR measurements are complicated by the finite performance of the directional device used to measure the reflected power. The only accurate and convenient way to make return loss measurements is with a well matched high directivity directional coupler or bridge.
Marki Microwave

Switch Solutions for Systems with Low PIM Requirements
Dow-Key Microwave has invested in R&D for new RF switch products designed specifically to reduce intermodulation (IM) in coaxial switches.
Dow-Key Microwave

How to Specify RF and Microwave Filters
Covers cavity, ceramic, LC, crystal and helical filters.
Anatech Electronics

Mounting Considerations for Medium Power Surface-Mount RF Devices
Covers all factors that must be considered when mounting SMT devices.
TriQuint Semiconductor

Biasing MMIC Amplifiers
How to bias MMICs along with theory and techniques.
Mini-Circuits


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