Interference: The Creeping Menace
By Anatech Electronics

Interference has been the bane of communication system designers since the earliest days of radio. At least back then, there were fewer sources to contend with but also far fewer remedies at their disposal.


MMD March 2014
New Military Microwave Digest


Band Reject Filter Series
Higher frequency band reject (notch) filters are designed to operate over the frequency range of .01 to 28 GHz. These filters are characterized by having the reverse properties of band pass filters and are offered in multiple topologies. Available in compact sizes.
RLC Electronics

SP6T RF Switch
JSW6-33DR+ is a medium power reflective SP6T RF switch, with reflective short on output ports in the off condition. Made using Silicon-on-Insulator process, it has very high IP3, a built-in CMOS driver and negative voltage generator.

Group Delay Equalized Bandpass Filter
Part number 2903 is a group delayed equalized elliptic type bandpass filter that has a typical 1 dB bandwidth of 94 MHz and a typical 60 dB bandwidth of 171 MHz. Insertion loss is <2 dB and group delay variation from 110 to 170 MHz is <3nsec.
KR Electronics

Absorptive Low Pass Filter
Model AF9350 is a UHF, low pass filter that covers the 10 to 500 MHz band and has an average power rating of 400W CW. It incurs a rejection of 45 dB minimum at the 750 to 3000 MHz band, and power rating of 25W CW from 501 to 5000 MHz.

LTE Band 14 Ceramic Duplexer
This high performance LTE ceramic duplexer was designed and built for use in public safety communication and commercial cellular applications. It operates in Band 14 and offers low insertion loss and high isolation to enable clear communications in the LTE network.
Networks International

See all products in this issue

  Thursday, August 21, 2014 - Featured Cover Products
  Current Articles

Hittite’s Wideband (Distributed) Power Amplifiers Span DC to 65 GHz
By Hittite Microwave

Waveguide Filters: New Design Techniques for Exploiting a Mature Technology
By Luso Electronics

High Power PIN Diode Switches for Aerospace and Defense Applications
By Skyworks Solutions, Inc.

Elementary, my dear!
By Karen Hoppe, Editor, Microwave Product Digest

  Featured in July's On The Market.
xxx Solid State Hybrid Power Amplifier
Model 50HM1G6AB-47 is a compact, wideband, 50W Class AB solid state hybrid power amplifier module that instantaneously covers 1 to 6 GHz. It operates from a single DC voltage, and provides 48 dB of typical gain with excellent gain flatness, noise figure and low intermodulation distortion for military and wireless applications.
xxx High Isolation SP4T Switch
Now available with full design support capabilities is the broadband, highly linear PE42442 from Peregrine Semiconductor, which operates from 450 MHz to 4 GHz and features 61 dB isolation (at 900 MHz), +58 dBm IIP3, and +34 dBm power handling.
xxx Coaxial/Compact Ultra-Wideband Linear Amp
Model AMF-5F-04001200-12-10P is a new addition to the company’s family of low noise, wideband and ultra-small coaxial LNAs in the 4 to 12 GHz band. It has over 39 dB of gain in a housing that is only 0.89” long and 0.64 wide without the field replaceable SMA connectors. Gain flatness is a maximum of +/-1.5 dB.
xxx Pressurized Connectors
The pSeries pressurized connectors provide low-loss, high-stability performance through 30 GHz at +/-65 psi. These pressurized connectors, which meet the IP68 standard, feature a simplified, three-piece design—body, center contact, and an innovative dielectric—which eliminates troublesome internal O-rings, gaskets and silicone greases.
xxx Low PIM Adapters & Jumpers
New low PIM (-160 to -165 dBc, typ.) adapters and jumpers for DAS applications feature industry-leading PIM performance of -155 dBc minimum. They are available in 7/16 DIN, Type N to SMA and 4.1/9.5 Mini-DIN connectors. Ideal for a variety of applications.
   Industry News
Anritsu Announces Manufacturing Test License Agreement with Broadcom
Keysight Technologies Begins Operations
ADI Completes Acquisition of Hittite Microwave
Peregrine Semiconductor and RF Micro Devices Settle All Outstanding Litigation
Lansdale Celebrates Its 50th Year
API Technologies Front End Microwave System to Serve Next-Generation RWR
Agilent Technologies Names Alexander as CTO
Custom MMIC Appoints Spartech-South as Rep for Southeast U.S.
Rohde & Schwarz joins M2M Alliance
Arrow To Distribute Telegesis Ltd. ZigBee Products in Americas
Lansdale and Freescale Partner On Phase Frequency Detector
Mini-Circuits Receives 2013 4-Star Supplier Excellence Award from
Remtec Launches New Web Site
Coaxicom Receives AS9100C Certification
Comdel Appoints Sinclair as Director of Sales
Passive Plus and Modelithics Develop Low and Ultra-Low ESR Capacitor Models
   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.


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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...

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