ARTICLES

Performance Improvement of Power Amplifiers Using an Asymmetrical Spurline Structure

In this article, an asymmetrical spurline structure with dual rejection bands is proposed to reduce the higher harmonics of microwave power amplifiers. To evaluate the effect of an asymmetrical spurline structure on microwave amplifiers, two InGaP HBT ...
Microstrip bandgap structures, such as photonic bandgap (PBG), electromagnetic bandgap (EBG) and defected ground structure (DGS), have recently been used to suppress high-order harmonics in antennas, amplifiers and oscillators 1-4 because they are simple to fabricate and have excellent filtering performance. For example, Radisic 1 introduced a wideband power...
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