Design of a phase shifter with improved bandwidth using embedded series-shunt switches

Author

Kang, Dong-Woo ; Lee, Hoseon ; Lee, Kyong Hee ; Jeon, Soon-Ik ; Hong, Songcheol

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon

fYear

2005

fDate

6-7 Oct. 2005

Firstpage

311

Lastpage

314

Abstract

A phase shifter with improved bandwidth using embedded series-shunt switches is presented. The FET switches become part of phase shifting filter elements as well as series-shunt switches. This improves the bandwidth of phase shifter because of having intrinsic characteristics of a high-pass and low-pass phase shifter. A phase shifter using resonated FET circuit is analyzed and compared. The conditions of circuit elements are derived in analytic form, which are used to obtain broadband phase characteristic. Two types of a Ku band 90deg phase shifter are designed. The proposed phase shifter exhibits more broadband phase characteristic than the resonated FET topology. The proposed approach enables to realize a compact phase shifter with broadband performance

Keywords

field effect transistor switches; high-pass filters; low-pass filters; network synthesis; phase shifters; FET switches; broadband phase characteristic; embedded series-shunt switches; high-pass phase shifter; low-pass phase shifter; phase shifting filter elements; Antenna arrays; Bandwidth; Circuit analysis; Circuit topology; FET circuits; Filters; Phase shifters; Phased arrays; Switches; Telecommunication switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2005. EURAD 2005. European

Conference_Location

Paris

Print_ISBN

2-9600551-3-6

Type

conf

DOI

10.1109/EURAD.2005.1605626

Filename

1605626