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May 2013 Digital Edition Online Edition

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Efficiency Enhanced Amplifier Using a Digitally-Controlled Dynamic Bias Switching Circuit

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Better than photos - Northrop Grumman, U.S. Navy conduct arrested landing of X-47B unmanned demonstrator

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Home » Amplifier Design Using a λ/4 High Impedance Bias Line with a Defected Ground Structure (DGS)
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Amplifier Design Using a λ/4 High Impedance Bias Line with a Defected Ground Structure (DGS)

In this article, a new -/4 bias line, combined with a dumbbell shaped defected ground structure (DGS), is proposed to suppress harmonics in power amplifiers. The proposed bias line maintains the required high impedance after the DGS is inserted, while ...

Yong-Chae Jeong, Chonbuk National University; Si-Gyun Jeong, Samsung Electronics; Jong-Sik Lim, Korean Intellectual Property Office; and Chul-Dong Kim
April 26, 2004
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Related Articles

Design of an Amplifier Using a Harmonic Termination Matching Tuner and Harmonic Blocking Bias Line

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An Equivalent Circuit and Modeling Method for Defected Ground Structure and Its Application to the Design of Microwave Circuits

Recently, extensive research efforts on photonic band gap (PBG) structures where periodic patterns are etched on the ground plane of microstrip lines have been conducted for microwave circuit applications. 1–4 The applications of PBG for power amplifiers, filters and mixers have been reported. A defected ground structure (DGS), which...
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