Title :
Impedance characteristics of a Ka-band MMIC active microstrip antenna using FDTD method
Author_Institution :
Dept. of Electron., Heilongjiang Univ., China
Abstract :
A Ka-band MMIC active microstrip antenna is presented. The whole device consists of a GaAs microwave diode, a coplanar waveguide with an inductive slotted patch resonator, which acts simultaneously as a radioactive coupling aperture of a rectangular microstrip antenna and a microstrip rectangular patch antenna. The impedance characteristics of the antenna have been analyzed by using a direct three-dimensional finite-difference time-domain (FDTD) method. The numerical results for the impedance of the antenna are shown to agree with the measurements.
Keywords :
MMIC; active antennas; antenna theory; electric impedance; finite difference time-domain analysis; microstrip antennas; millimetre wave antennas; slot antennas; 10 to 50 GHz; FDTD method; GaAs; GaAs microwave diode; Ka-band MMIC active microstrip antenna; coplanar waveguide; direct three-dimensional finite-difference time-domain method; impedance characteristics; inductive slotted patch resonator; microstrip rectangular patch antenna; radioactive coupling aperture; rectangular microstrip antenna; Coplanar waveguides; Diodes; Finite difference methods; Gallium arsenide; Impedance; MMICs; Microstrip antennas; Microstrip resonators; Microwave devices; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631474
