A Dual Circularly Polarized Array Antenna for Ka-Band Satellite Communications
Paper i proceeding, 2021

This work presents a dual circularly polarized 8-by-8 array antenna using inbuilt polarizers for satellite communications. The design consists of five metal layers, including two feeding layers for the dual circular polarizations and a polarizer layer that utilizes a pair of sector cavities as phase delay elements for each sub-array. Two corporate feeding networks using folded E-plane and H-plane T-junctions are proposed to excite the radiating elements. Simulated results of the array antenna have shown that the axial ratios are less than 1 dB from 29 to 31 GHz for both polarizations. The realized gains for both polarizations are larger than 25 dBi at center frequency.

Polarizer

Dual circular polarization

Antenna array

Ka-band

Författare

Qiannan Ren

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk, Antennsystem

Ashraf Uz Zaman

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk, Antennsystem

Jian Yang

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk, Antennsystem

2021 International Symposium on Antennas and Propagation, ISAP 2021


9789868478718 (ISBN)

2021 International Symposium on Antennas and Propagation, ISAP 2021
Taipei, Taiwan,

Hardware For Next generation Millimeter Wave Automotive Radar Sensor

VINNOVA (2018-02707), 2019-01-01 -- 2022-12-31.

Ämneskategorier

Telekommunikation

Annan fysik

Annan elektroteknik och elektronik

DOI

10.23919/ISAP47258.2021.9614491

Mer information

Senast uppdaterat

2022-02-01