Title :
Millimeter-wave corrugated tapered-slot antennas
Author :
Judaschke, Rolf H. ; Palacios, Miguel A.
Author_Institution :
Arbeitsbereich Hochfrequenztechnik, Technische Univ. Hamburg-Harburg, Hamburg, Germany
Abstract :
A method for improving the radiation pattern of end-fire tapered slot antennas (TSA) on thick substrate is presented. It is based on the reduction of the effective dielectric constant εeff by corrugating the taper contour by a series of short-circuited slotline stubs. The method has been applied to both 70-GHz TSA on low dielectric constant substrate (ε = 2.2), and a 150-GHz TSA on quartz substrate. The antenna design has been performed following an analytical model and verified by commercial software. Experimental radiation patterns showed slight agreement to simulation results.
Keywords :
antenna radiation patterns; millimetre wave antennas; slot antennas; substrates; 150 GHz; 70 GHz; analytical model; antenna design; effective dielectric constant; end-fire tapered slot antennas; millimetre-wave corrugated antennas; quartz substrate; radiation pattern improvements; short-circuited slotline stubs; taper contour; tapered-slot antennas; thick substrate; Analytical models; Antennas and propagation; Dielectric constant; Dielectric substrates; Millimeter wave radar; Millimeter wave technology; Slot antennas; Slotline; Software performance; Stability;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1335894
