A Dual Circularly Polarized Patch Antenna Array for S-band
Alternative TitleWOS:000560305103029
Li, Z. M.; Sledkov, V. A.; Rudakov, V. A.; Taranenko, V. V.; Liang, X. F.
AbstractIn this paper, a high gain dual circularly polarized patch antenna array containing 5 x 5 radiating elements and operating at S band is presented. Each radiating element contains a radiating patch and a parasitic patch placed above a metal reflector. All components of a beam forming network and micro strip conductors exciting patches are formed on a one surface of a dielectric substrate mounted on a back surface of a metal reflector. The radiating patch comprises four metal strips bent towards a metal reflector and directly connected to exciting micro strip lines through holes made in the metal reflector and a dielectric substrate. Each patch excited by 3-dB branch line coupler radiates right hand circular polarization and left hand circular polarization. The reflector has dimensions 4.3 lambda(0) x4.7 lambda(0), where lambda(0) is wave length in a free space. Calculated directivity of such antenna array is 22.3 dBi at central frequency f(0). Measured return loss is -20.1 dB and isolation is 20.5 dB within the required 11% frequency band. Measured axial ratio is less than 1.5 dB and cross polarization better than -25 dB. Measured insertion loss of a beam forming network is -1.3 dB therefore estimated gain of both circular polarization is 21 dB.
Conference NamePhotonics and Electromagnetics Research Symposium - Fall (PIERS - Fall)
Conference DateDEC 17-20, 2019
Conference PlaceXiamen, PEOPLES R CHINA
Indexed ByCPCI
Document Type会议论文
Affiliation1.[Li, Z. M.
2.Sledkov, V. A.
3.Rudakov, V. A.
4.Taranenko, V. V.] Guangzhou Compass Antenna Design Inst Co LTD, Guangzhou, Peoples R China
5.[Liang, X. F.] Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Z. M.,Sledkov, V. A.,Rudakov, V. A.,et al. A Dual Circularly Polarized Patch Antenna Array for S-band[C],2019:3113-3121.
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