Dumbbell DGS based broadband RF choke for UWB LNA

Author

Yeh, Chin-I ; Yang, Dong-Hua ; Chen, Yung-Nan ; Liu, Tsung-Han ; Fu, Jeffrey S. ; Chiu, Hsien-Chin ; Kao, Hsuan-Ling

Author_Institution

Dept. of Electron. Eng., Chang Gung Univ., Taoyuan, Taiwan

fYear

2010

fDate

11-13 Aug. 2010

Firstpage

162

Lastpage

166

Abstract

A dumbbell shaped defected ground structure (DGS) RF choke is proposed for UWB broadband RF choke design. The special feature of the design is to use Chebyshev modulated DGS elements to adjust the frequency bandwidth of rejection band of a designed low pass filter. It fits very well to cover the 3.1 to 10.6 GHz UWB band with 15 dB rejection throughout the band. It is suitable for MMIC active module test board bias circuit usage and possibly for further MMIC internal broadband bias circuit implementation.

Keywords

defected ground structures; inductors; low noise amplifiers; ultra wideband technology; wideband amplifiers; Chebyshev modulated DGS elements; MMIC active module test board bias circuit; UWB LNA; UWB broadband RF choke design; dumbbell shaped defected ground structure RF choke; frequency 3.1 GHz to 10.6 GHz; frequency bandwidth; gain 15 dB; low pass filter; rejection band; Bandwidth; Broadband communication; Chebyshev approximation; Inductors; Microstrip filters; Microwave amplifiers; Radio frequency; Broadband RF choke; Chebyshev modulation; defected ground structure (DGS); dumbbell element; rejection bandwidth;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Electromagnetism and Student Innovation Competition Awards (AEM2C), 2010 International Conference on

Conference_Location

Taipei

Print_ISBN

978-1-4244-6416-6

Type

conf

DOI

10.1109/AEM2C.2010.5578803

Filename

5578803