Title :
A gain-enhanced microstrip-fed cavity-backed slot antenna
Author :
Tan, Weihua ; Shen, Zhongxiang ; Shao, Zhenhai ; Fujise, Masayuki
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper describes a gain-enhanced cavity-backed slot antenna. A superstrate of high permittivity is placed at a certain distance above the substrate to enhance the gain of the slot antenna. The cavity-backed slot antenna is fed by a microstrip line printed on the top of the substrate. Both simulation results and experimental measurements show that this superstrate-covered cavity-backed slot antenna can attain a high gain, while it retains the broadband impedance characteristics.
Keywords :
cavity resonators; microstrip antennas; microstrip lines; permittivity; slot antennas; broadband impedance characteristics; gain enhanced cavity-backed slot antenna; high permittivity superstrate; microstrip lines; microstrip-fed slot antenna; Antenna measurements; Bandwidth; Dielectric substrates; Gain measurement; High-K gate dielectrics; Impedance; Microstrip antennas; Permittivity; Planar arrays; Slot antennas;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606383
