In 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
Airfast RF Power Solutions The two new Airfast RF transistor products for the 2.3 GHz LTE bands are in-package Doherty devices that deliver high efficiency within a compact footprint. They include the AFT23S170-13S (above), which can be used as the main or peaking transistor in a Doherty amplifier. In class AB operation at an average power of 45W, it delivers 33.9% efficiency and an 18.8 dB gain. Freescale Semiconductor
Military/Space VCO Series The EMO Series is designed in accordance with MIL-STD-883 for military and high reliability applications. It is offered in a surface and pin mount configuration and hermetically sealed to withstand harsh environments. Extended temperature range is available. Emhiser Microtech
Microwave Precision Fixed Attenuators RCAT attenuators are fixed value absorptive attenuators. The highly precision and repeatable monolithic attenuator chip is processed using the most advanced semiconductor processing techniques. They have a wide bandwidth of DC to 20 GHz. Mini-Circuits
Dual Directional Coupler Model C9107 is a 53 dB dual directional coupler that covers the full 20 to 1000 MHz frequency band and is rated at 1000W CW. This high power design operates with an insertion loss of only 0.5 dB and offers a minimum 20 dB directivity. Werlatone
E-Band Externally Biased I/Q Mixer Model SFQ-79379315-1212SF-E1 is a GaAs MMIC-based E-band externally based quadrature (I/Q) mixer. The center operating frequency is 79 GHz with +/-5 GHz instantaneous bandwidth. The IF bandwidth is DC to 2 GHz. Sage Millimeter
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