Title :
Non-uniform vertically stacked microstrips of high radiation efficiency at millimeter waves
Author :
Huang, Kuo-Feng ; Tzuang, Ching-Kuang C.
Author_Institution :
Inst. of Electr. Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A two-layered vertically stacked microstrips structure is investigated and found to possess a weakly attenuated leaky mode, which can be applied to realize a high-gain, narrow-beam antenna. The attenuation rate can be further reduced by sophisticatedly controlling the widths of metal strips. The reduction of attenuation rate can improve the directivity and bandwidth of antenna abundantly. A new tapered line termination is also illustrated in this paper. This structure can greatly shorten the antenna length by more than 16%
Keywords :
leaky wave antennas; microstrip antennas; millimetre wave antennas; EHF; MM-wave antenna; antenna length reduction; attenuation rate reduction; bandwidth; directivity; high radiation efficiency; high-gain antenna; metal strip width control; narrow-beam antenna; nonuniform vertically stacked microstrips; radiation characteristics; tapered line termination; two-layered vertically stacked microstrips structure; weakly attenuated leaky mode; Antennas and propagation; Attenuation; Bandwidth; Frequency; Leaky wave antennas; Microstrip antennas; Millimeter wave communication; Millimeter wave technology; Planar arrays; Slot antennas;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985340
