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In this paper, the analysis, design, and measured results of a novel tapered drain line distributed power amplifier are presented. The prototype tapered drain line distributed power amplifier has a gain of 10 dB, power-added-efficiency of about 24%, and output power of about 18dBm, over a 4.5 GHz bandwidth. The drain line impedance tapering technique is shown to significantly increase the efficiency...
In this paper, the design and measured results of a novel wideband distributed architecture GaAs FET mixer in which the LO signal is injected into the mixer through the source terminals of FETs are presented. The prototype MESFET source injected distributed mixer has a conversion gain (without IF signal amplification) varying from -8 to -3.5 dB in the range 1 to 3 GHz. It has good return losses at...
In this paper, a novel design approach and measured results of a compact proximity coupled active integrated antenna (PCAIA) are presented. A new type of antenna feed structure is proposed. A single self-biased (through the RF port), two-stage low noise amplifier has been integrated with a proximity coupled patch antenna having a new feed structure. The proposed approach is useful in the design of...
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