Title :
A broad-band rectangular patch antenna with a pair of wide slits
Author :
Wong, Kin-Lu ; Hsu, Wen-Hsiu
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
9/1/2001 12:00:00 AM
Abstract :
A new broad-band design of a probe-fed rectangular patch antenna with a pair of wide slits is proposed and experimentally studied. The proposed design is with an air substrate, and experimental results show that, simply by inserting a pair of wide slits at one of the radiating edges of the rectangular patch, good impedance matching over a wide bandwidth can easily be achieved for the proposed antenna. With an air substrate of thickness about 8% of the wavelength of the center operating frequency, the proposed antenna can have an impedance bandwidth of about 24%. For frequencies within the impedance bandwidth, good radiation characteristics are also observed, with a peak antenna gain of about 7.2 dBi
Keywords :
UHF antennas; antenna radiation patterns; electric impedance; impedance matching; microstrip antennas; 1485 MHz; 1644 MHz; 1740 MHz; 7.2 dB; air substrate; broadband antenna; impedance bandwidth; impedance matching; microstrip patch antenna; peak antenna gain; probe-fed patch antenna; radiation characteristics; rectangular patch antenna; wide bandwidth; wide slits; Antenna measurements; Antennas and propagation; Aperture antennas; Aperture coupled antennas; Bandwidth; Frequency; Impedance; Microstrip antenna arrays; Microstrip antennas; Patch antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
