Design and characterization concepts of a broadband chip-integrated antenna

Author

Hitzler, Martin ; Waldschmidt, Christian

Author_Institution

Inst. of Microwave Tech., Univ. of Ulm, Ulm, Germany

fYear

2014

fDate

6-9 Oct. 2014

Firstpage

96

Lastpage

99

Abstract

This paper presents the integrated antenna of a frequency modulated constant wave (FMCW) radar chip operating in the 79 GHz band. Besides the transmitting and receiving mode of the chip, an alternative to characterize the antenna reflection coefficient, gain, and radiation pattern are implemented on chip. The multiple options are established by using the focused ion beam (FIB) process in combination with a short-circuited quarter wavelength transformer. Additionally, a through-reflect-line (TRL) calibration is provided on chip to deembed the probe tips. The measured 10 dB matching bandwidth of the antenna is 9 GHz with a flat gain of 2 dBi and a radiation efficiency of about 30%.

Keywords

broadband antennas; calibration; radar antennas; FMCW radar chip; broadband chip-integrated antenna; focused ion beam process; frequency 79 GHz; frequency 9 GHz; frequency modulated constant wave radar chip; short-circuited quarter wavelength transformer; through-reflect-line calibration; Antenna measurements; Frequency measurement; Gain; Gain measurement; Probes; Radar antennas; Semiconductor device measurement; calibration; gain measurement; integrated antenna; millimeter-wave antennas; on-chip antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2014 44th European

Conference_Location

Rome

Type

conf

DOI

10.1109/EuMC.2014.6986378

Filename

6986378