An LTCC Phase Shifter with an SPDT Switch for a 5.8GHz-Band Active Integrated Phased Array Antenna

Author

Yamashita, Kiyotaka ; Yamamoto, Takeshi ; Seita, Harunobu ; Shimane, Eri ; Komurasaki, Kimiya ; Kawasaki, Shigeo

Author_Institution

Res. Inst. for Sustainable Humanosphere, Kyoto Univ. Gokasho, Uji

fYear

2008

fDate

10-12 Sept. 2008

Firstpage

447

Lastpage

449

Abstract

5.8 GHz band digital phase shifters to control a beam direction for an active integrated phased array antenna are designed. The 4-bit phase shifters with integrated GaAs FET SPDT switches are integrated with an LTCC substrate. We realized a low loss 4-bit LTCC phase shifter with the size of 10 mm times 13 mm times 0.55 mm. From the simulation results, the insertion loss of LTCC phase shifter without the switch is simulated with about 0.5 dB/bit. The insertion loss of the LTCC phase shifter integrated with the GaAs FET SPDT switches and phase error are measured to be about 2.3 dB/bit and less than 15deg, respectively.

Keywords

III-V semiconductors; active antenna arrays; antenna phased arrays; field effect transistors; gallium arsenide; microwave antenna arrays; microwave phase shifters; FET SPDT switches; LTCC phase shifter; LTCC substrate; active integrated phased array antenna; digital phase shifters; frequency 5.8 GHz; phase error; word length 4 bit; Antenna arrays; Directive antennas; FETs; Gallium arsenide; Insertion loss; Loss measurement; Phase measurement; Phase shifters; Phased arrays; Switches; AIPAA; an LTCC Phase Shifter; an SPDT Switch;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008 China-Japan Joint

Conference_Location

Shanghai

Print_ISBN

978-1-4244-3821-1

Type

conf

DOI

10.1109/CJMW.2008.4772465

Filename

4772465