A K-band miniature, broadband, high output power HBT MMIC balanced doubler with integrated balun

Author

Weng, Ching-Chih ; Tsai, Zuo-Min ; Wang, Huei

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2005

fDate

3-4 Oct. 2005

Firstpage

625

Lastpage

627

Abstract

A K-band frequency doubler using InGaP HBT is developed, which features high fundamental frequency rejection, flat conversion loss over wide bandwidth, and high saturation output power. To obtain a balanced signal, a compact on-chip lumped rat-race hybrid is implemented. The circuit exhibits a measured conversion loss of 4 dB over the output frequencies from 14 to 22 GHz. The fundamental frequency suppression is better than 20 dB and the second harmonic saturation output power is higher than 7.3 dBm with a miniature chip size of 1 mm /spl times/ 1 mm.

Keywords

bipolar MMIC; frequency multipliers; heterojunction bipolar transistors; indium compounds; power integrated circuits; 14 to 22 GHz; 4 dB; K-band frequency doubler; broadband doubler; compact on-chip lumped rat-race hybrid; flat conversion loss; fundamental frequency suppression; high fundamental frequency rejection; high output power HBT MMIC balanced doubler; integrated balun; second harmonic saturation; Bandwidth; Circuits; Frequency conversion; Frequency measurement; Heterojunction bipolar transistors; Impedance matching; K-band; Loss measurement; MMICs; Power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Gallium Arsenide and Other Semiconductor Application Symposium, 2005. EGAAS 2005. European

Conference_Location

Paris

Print_ISBN

88-902012-0-7

Type

conf

Filename

1637297