A 25-to-45-GHz 45° power divider

Author

Jui-Chih Kao ; Yuan-Hung Hsiao ; Kuang-Sheng Yeh ; Chau-Ching Chiong ; Yu-Hsuan Lin ; Kun-You Lin ; Huei Wang

Author_Institution

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

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

959

Lastpage

962

Abstract

A 0.15-μm pHEMT 25-to45-GHz wideband 45° power divider with continuously tunable phase and gain differences is presented in this paper. This circuit includes a modified Wilkinson power divider with wide isolation bandwidth. Also, a phase-compensated technique is utilized to maintain constant phase difference in each phase step over a wide bandwidth. The gain and phase errors are better than 1.3 dB and ±2.5°, and the insertion loss, return losses, and isolation of this phase shifter are better than 3.7 dB, 10 dB and 19 dB, respectively, from 25 to 45 GHz.

Keywords

high electron mobility transistors; phase shifters; power dividers; Wilkinson power divider; constant phase difference; continuously tunable phase; frequency 25 GHz to 45 GHz; gain differences; gain error; insertion loss; pHEMT; phase error; phase shifter; phase-compensated technique; return loss; size 0.15 mum; wide isolation bandwidth; wideband power divider; Delays; Frequency control; Gain; Phase shifters; Power dividers; Varactors; Wideband; Wilkinson power divider; attenuator; pHEMT; varactor; wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686818