Title :
Small H-shaped antennas for MMIC applications
Author :
Singh, Dilbagh ; Kalialakis, Christos ; Gardner, Peter ; Hall, Peter S.
Author_Institution :
Sch. of Electron. & Electr. Eng., Birmingham Univ., UK
fDate :
7/1/2000 12:00:00 AM
Abstract :
A small short-circuited H-shaped GaAs monolithic microwave integrated circuits (MMICs) patch antenna is presented. Resonant at 5.98 GHz, it is the lowest frequency MMIC patch antenna reported that we are aware of and is intended for short-range communications (e.g., vehicular). Initial experimental and theoretical characterization of the proposed structure has been carried out on soft microstrip substrates. It has been shown that the size of an H-shaped patch antenna can be reduced to as low as one tenth of that of a half wavelength patch antenna resonant at the same frequency, saving valuable substrate space. The resonance frequency, radiation patterns and gain have been investigated. Ground plane truncation effects, which are important for MMIC applications, have been examined using the finite-difference time-domain (FDTD) method
Keywords :
MMIC; antenna radiation patterns; finite difference time-domain analysis; microstrip antennas; microwave antennas; mobile antennas; 5.98 GHz; FDTD method; GaAs; H-shaped patch antenna; III V semiconductor; MMIC applications; MMIC patch antenna; SHF; experiment; finite-difference time-domain method; gain; ground plane truncation effects; monolithic microwave integrated circuits; radiation patterns; resonance frequency; short-circuited patch antenna; short-range communications; small H-shaped antennas; soft microstrip substrates; vehicular communications; Finite difference methods; Frequency; Gallium arsenide; MMICs; Microwave communication; Microwave integrated circuits; Monolithic integrated circuits; Patch antennas; Resonance; Time domain analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
