DocumentCode :
583975
Title :
Gain bandwidth of microstrip-line-feeding waveguide aperture antenna on LTCC substrate in the millimeter-wave band
Author :
Hori, Hiroki ; Sakakibara, Kunio ; Kikuma, Nobuyoshi ; Hirayama, Hiroshi
Author_Institution :
Dept. of Comput. Sci. Eng., Nagoya Inst. of Technol., Nagoya, Japan
fYear :
2012
fDate :
Oct. 29 2012-Nov. 2 2012
Firstpage :
46
Lastpage :
49
Abstract :
Mictostrip-feeding broadband directive antennas [1]-[3] are in highly demand for high bitrate wireless communication systems and automotive UWB radars [4]. We have developed broadband microstrip-to-waveguide transitions composed of a multi-layer substrate [5]. To apply this to the microstrip-line-feeding broadband waveguide aperture antenna, the waveguide transmission line of the transition is replaced by a waveguide with an aperture. Low profile, broad bandwidth and good connection with microwave circuits can be expected by using the antenna with a multi-layer substrate. A novel antenna was proposed to operate over broad frequency bandwidth in the millimeter-wave band [6]. Here, the bandwidth of gain is evaluated as well as the bandwidth of return loss in this work. Important geometrical parameters are indicated to control the resonant frequency and the bandwidth of gain and return loss. Loss causing degradation of gain is discussed from the simulated electromagnetic distribution.
Keywords :
amplification; antenna feeds; aperture antennas; broadband antennas; microstrip antennas; microstrip lines; microwave circuits; radiocommunication; road vehicle radar; transmission lines; LTCC substrate; automotive UWB radars; broad bandwidth; broadband microstrip-to-waveguide transitions; electromagnetic distribution; gain bandwidth; high bitrate wireless communication systems; microstrip-line-feeding broadband waveguide aperture antenna; microstrip-line-feeding waveguide aperture antenna; microwave circuits; mictostrip-feeding broadband directive antennas; millimeter-wave band; multilayer substrate; return loss; waveguide transmission line; Apertures; Bandwidth; Broadband antennas; Electromagnetic waveguides; Microstrip antennas; Resonant frequency; Substrates;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (ISAP), 2012 International Symposium on
Conference_Location :
Nagoys
Print_ISBN :
978-1-4673-1001-7
Type :
conf
Filename :
6393847
Link To Document :
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