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Open Access
12- and 21-GHz Dual-Band Dual-Circularly Polarized Offset Parabolic Reflector Antenna Fed by Microstrip Antenna Arrays for Satellite Broadcasting Reception

Masafumi NAGASAKA, Masaaki KOJIMA, Hisashi SUJIKAI, Jiro HIROKAWA

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Summary :

In December 2018, satellite broadcasting for 4K/8K ultra-high-definition television (UHDTV) will begin in Japan. It will be provided in the 12-GHz (11.7 to 12.75GHz) band with right- and left-hand circular polarizations. BSAT-4a, a satellite used for broadcasting UHDTV, was successfully launched in September 2017. This satellite has not only 12-GHz-band right- and left-hand circular polarization transponders but also a 21-GHz-band experimental transponder. The 21-GHz (21.4 to 22.0GHz) band has been allocated as the downlink for broadcasting satellite service in ITU-R Regions 1 (Europe, Africa) and 3 (Asia Pacific). To receive services provided over these two frequency bands and with dual-polarization, we implement and evaluated a dual-band and dual-circularly polarized parabolic reflector antenna fed by 12- and 21-GHz-band microstrip antenna arrays with a multilayer structure. The antenna is used to receive 12- and 21-GHz-band signals from in-orbit satellites. The measured and experimental results prove that the proposed antenna performs as a dual-polarized antenna in those two frequency bands and has sufficient performance to receive satellite broadcasts.

Publication
IEICE TRANSACTIONS on Communications Vol.E102-B No.7 pp.1323-1333
Publication Date
2019/07/01
Publicized
2019/01/09
Online ISSN
1745-1345
DOI
10.1587/transcom.2018EBP3257
Type of Manuscript
PAPER
Category
Antennas and Propagation

Authors

Masafumi NAGASAKA
  Japan Broadcasting Corporation
Masaaki KOJIMA
  Japan Broadcasting Corporation
Hisashi SUJIKAI
  Japan Broadcasting Corporation
Jiro HIROKAWA
  Tokyo Institute of Technology

Keyword