Title :
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
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;
Conference_Titel :
Microwave Conference (EuMC), 2014 44th European
Conference_Location :
Rome
DOI :
10.1109/EuMC.2014.6986378
