Title :
Reactively loaded microstrip antenna for dual-frequency operation
Author_Institution :
Dept. of Phys., Nat. Kaohsiung Inst. of Technol., Taiwan
Abstract :
Novel dual-frequency operation of a single-feed rectangular microstrip antenna with an embedded reactive loading is presented. The reactive loading is provided by a structure of two cascaded microstrip-line sections embedded within a rectangular slot cut in the patch. By selecting suitable dimensions of the microstrip-line sections and the rectangular slot, the proposed antenna can perform a dual-frequency operation, with a low frequency ratio of about 1.04 to 1.15 between the two operating frequencies. Also, the two operation frequencies are of the same polarization planes and similar broadside radiation patterns.
Keywords :
antenna feeds; antenna radiation patterns; electric reactance; electromagnetic wave polarisation; load (electric); microstrip antennas; microstrip lines; multifrequency antennas; broadside radiation patterns; cascaded microstrip-line sections; dual-frequency operation; low frequency ratio; polarization planes; reactively loaded microstrip antenna; rectangular slot; single-feed rectangular microstrip antenna; Antenna radiation patterns; Feeds; Frequency; Loaded antennas; Microstrip antennas; Permittivity; Physics; Polarization; Resonance; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788269
