DocumentCode :
540839
Title :
77 GHz beam-switching high-gain end-fire antenna on LTCC
Author :
Lamminen, Antti ; Saily, Jussi
Author_Institution :
VTT Tech. Res. Centre of Finland, Espoo, Finland
fYear :
2010
fDate :
20-23 Sept. 2010
Firstpage :
1
Lastpage :
4
Abstract :
In this paper, a design of a 77 GHz beam-switching antenna on Ferro A6-M LTCC is presented. The antenna consists of three high-gain end-fire type antenna elements pointing at different directions. One element is active at a time and the appropriate element is selected using a commercial SP4T GaAs pin-diode switch. A design of a transition from a WR-10 waveguide to a microstrip line for radiation pattern testing purposes is also described. The transition covers almost the entire waveguide W-band and the measured reflection coefficient is below -10-dB between 77 GHz and 110 GHz. The total loss of the transition is only 1 dB at the maximum. Measured maximum gain of 9.2 dBi and a -3-dB beamwidth of about 40° are achieved for a single antenna element. Simulated radiation efficiency is 89%. Beam switching between three different directions is demonstrated with radiation pattern measurements at 78 GHz. Good agreement is achieved between the simulated and measured results. The presented antenna is a very promising candidate for high data rate short-range millimetre-wave applications.
Keywords :
antenna arrays; antenna radiation patterns; gallium arsenide; microstrip lines; Ferro A6-M LTCC; SP4T GaAs pin-diode switch; WR-10 waveguide; beam-switching antenna; frequency 77 GHz; frequency 77 GHz to 110 GHz; frequency 78 GHz; high-gain end-fire antenna; microstrip line; radiation pattern testing; reflection coefficient; waveguide W-band; Antenna measurements; Antennas; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
ICECom, 2010 Conference Proceedings
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-61284-998-0
Type :
conf
Filename :
5729672
Link To Document :
بازگشت