| dc.description.abstract | The thesis presents the design of a dual-polarization aperture-coupled patch antenna array
for Starlink applications. The proposed antennas operate in the Ku-band, specifically for
downlink reception at 10.7-12.7 GHz and uplink transmission at 13.75-14.5 GHz. The design
includes fixed beam 2×2 and 4×4 arrays. Both the single antenna and the antenna arrays utilize
aperture coupling, with antenna slots and feed structures arranged in a T-shaped configuration
to enhance isolation. Impedance bandwidth is achieved by slot cutting on the grounding plane.
The measured results of the antenna conform to the bandwidth specifications for the
Starlink applications.The measured impedance bandwidths for the downlink reception
frequencies are as follows: for the single antenna, it is 20.9% (10.5~12.9 GHz) and 21.8%
(10.66~13.28 GHz); for the 2×2 antenna array, it is 21.2% (10.5~13 GHz) for both; and for the
4×4 antenna array, it is 20.62% (10.57~13 GHz) and 20.15% (10.62~13 GHz). The measured
isolation for all configurations is greater than 23.9 dB. The measured gain for the single antenna
is greater than 6 dBi in the 0-degree direction. For the 2×2 antenna array, it ranges from 10.4 to
13.37 dBi, and for the 4×4 antenna array, it ranges from 13.85 to 17.69 dBi. For the uplink
transmission frequencies, the measured impedance bandwidths are as follows: for the single
antenna, it is 8.5% (13.5~14.7 GHz) for both; for the 2×2 antenna array, it is 6.75% (13.74~14.7
GHz) and 8.5% (13.5~14.7 GHz); and for the 4×4 antenna array, it is 8.5% (13.5~14.7 GHz)
資 for both. The measured isolation for all configurations is greater than 25 dB. The measured
gain for the single antenna is greater than 6 dBi in the 0-degree direction. For the 2×2 antenna
array, it ranges from 9.3 to 11.17 dBi, and for the 4×4 antenna array, it ranges from 16.51 to
18.39 dBi | en_US |