Title of article :
A new method to suppress harmonics using (lambda)/4 bias line combined by defected ground structure in power amplifiers
Author/Authors :
Jeong، Yong-Chae نويسنده , , Jeong، Si-Gyun نويسنده , , Lim، Jong-Sik نويسنده , , Nam، Sangwook نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
-537
From page :
538
To page :
0
Abstract :
A new (lambda)/4 bias line combined by a dumb-bell shaped defected ground structure (DGS) is proposed to suppress harmonics in power amplifiers. The proposed DGS bias line maintains the required high impedance even after DGS is inserted, while the width and length of the (lambda)/4 bias line are broader and shorter than those of conventional bias lines. When the DGS bias line is used in power amplifiers, the third harmonic components as well as the second harmonic are reduced, because of the increased slow-wave effect over wide harmonic band. It is shown that the reduction of the third harmonic component, the improvement of 1 dB compression point, and power added efficiency are 26.5 dB, 0.45 dB, and 9.1%, respectively.
Keywords :
Power-aware
Journal title :
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Serial Year :
2003
Journal title :
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Record number :
66139
Link To Document :
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