Title :
Analysis of planar millimeter wave slot antennas using a spectral domain approach
Author :
Biebl, E.M. ; Muller, J. ; Ostner, H.
Author_Institution :
Inst. fuer Hochfrequenztech., Tech. Univ. Munchen, Germany
Abstract :
Self-radiating oscillators in the millimeter wave range can be built by combining a slot resonator with an IMPATT diode. Good performance can be achieved only if the input impedance of the slot, seen at the terminals of the IMPATT diode, is in the proper range. The input impedance, obtained by a rigorous full wave analysis, is presented as a function of the slot width and substrate height for silicon and PTFE. It is shown that the required input resistance (typically is 2-5 Omega ) can be achieved by choosing narrow slots. The variation of the slot width allows an optimal matching of the resonator to the diode for any desired bias current. Comparison with a recently published self-radiating oscillator shows the validity of the simulation.<>
Keywords :
IMPATT diodes; antenna theory; slot antennas; 2 to 5 ohm; EHF; IMPATT diode; PTFE substrate; Si substrate; bias current; input impedance; input resistance; millimeter wave range; narrow slots; optimal matching; performance; planar antennas; rigorous full wave analysis; self-radiating oscillator; slot antennas; slot resonator; slot width; spectral domain approach; substrate height; Diodes; Green´s function methods; Impedance; Magnetic fields; Millimeter wave technology; Oscillators; Planar arrays; Silicon; Slot antennas; Surface waves;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.187992
