Title :
A method for designing broad-band microstrip antennas in multilayered planar structures
Author :
Liu, Zhang-Fa ; Kooi, Pang-Shyan ; Li, Le-Wei ; Leong, Mook-Seng ; Yeo, Tat-Soon
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
fDate :
9/1/1999 12:00:00 AM
Abstract :
The narrow bandwidth of a microstrip antenna is one of the important features that restrict its wide usage. A simple and practical method for the design of broad-band microstrip antennas is presented in this paper. Utilizing this design technique, several two-layer microstrip antennas have been proposed. To confirm the applicability of the method for the designs of antennas at L-band, experiments have been carried out. The measured results show that the proposed antennas have a bandwidth of up to 25.7%. Also, the method proposed in this paper is applicable to the design of other types of multilayered planar antennas
Keywords :
UHF antennas; antenna feeds; microstrip antenna arrays; planar antenna arrays; L-band; bandwidth; broad-band microstrip antennas; capacitor feed; coaxial probe feed; experiments; measured results; microstrip antenna design; multilayered planar antennas; multilayered planar structures; narrow bandwidth; two-layer microstrip antennas; Antenna measurements; Antenna theory; Bandwidth; Broadband antennas; Coaxial components; Design methodology; Dielectric substrates; Inductance; Microstrip antennas; Probes;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
