A K / Ka ‐band dielectric and metallic 3D printed aperture shared multibeam parabolic reflector antenna for satellite communication

2020 ◽  
Vol 30 (7) ◽  
Author(s):  
Xuyi Zhu ◽  
Bing Zhang ◽  
Kama Huang
Keyword(s):  
Satellite Communication ◽  
Reflector Antenna ◽  
Ka Band ◽  
Parabolic Reflector ◽  
3D Printed

scholarly journals Ka-Band Lightweight High-Efficiency Wideband 3D Printed Reflector Antenna

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yu Zhai ◽  
Ding Xu ◽  
Yan Zhang
Keyword(s):  
High Efficiency ◽  
Near Field ◽  
Side Lobe ◽  
High Gain ◽  
Reflector Antenna ◽  
Field Analysis ◽  
Side Lobe Level ◽  
Ka Band ◽  
3D Printed ◽  
Reflecting Surface

This paper presents a lightweight, cost-efficient, wideband, and high-gain 3D printed parabolic reflector antenna in the Ka-band. A 10 λ reflector is printed with polylactic acid- (PLA-) based material that is a biodegradable type of plastic, preferred in 3D printing. The reflecting surface is made up of multiple stacked layers of copper tape, thick enough to function as a reflecting surface (which is found 4 mm). A conical horn is used for the incident field. A center-fed method has been used to converge the energy in the broadside direction. The proposed antenna results measured a gain of 27.8 dBi, a side lobe level (SLL) of −22 dB, and a maximum of 61.2% aperture efficiency (at 30 GHz). A near-field analysis in terms of amplitude and phase has also been presented which authenticates the accurate spherical to planar wavefront transformation in the scattered field.

scholarly journals Square DRA feed for parabolic reflector antenna for satellite communication application

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
P Soni Reddy ◽  
Rahul Mondal ◽  
Sushanta Sarkar ◽  
Debasree Chanda Sarkar ◽  
Partha Pratim Sarkar
Keyword(s):  
Composite Structure ◽  
Satellite Communication ◽  
High Gain ◽  
Reflector Antenna ◽  
Dielectric Resonator Antenna ◽  
Suitable Candidate ◽  
Parabolic Reflector ◽  
High Polarization ◽  
Low X ◽  
Half Power

Abstract A square dielectric resonator antenna (SDRA) offering high polarization purity as a feed for parabolic reflector antenna is presented in this paper. Three sequences of holes are strategically integrated into the SDRA to enhance the polarization purity of the desired mode by suppressing the cross-polarization (X-pol) generating higher order mode. A detailed study on the performance of the parabolic reflector antenna with the proposed SDRA feed is also performed. The composite structure provides low X-pol levels of −33 dB at the half-power beamwidth (HPBW) points and −35 dB at the 1 dB co-polarization region in the H-plane. The composite structure radiates in the broadside direction with a high gain of 26 dBi and radiation efficiency of 95%. The proposed SDRA is designed to operate at 3 GHz of the S-band. A prototype of the proposed design is fabricated and experimentally verified. A measured X-pol isolation of 39 dB at ±15% of HPBW (European Telecommunication Standards Institute [ETSI] standard for satellite communication) and 50 dB at boresight is obtained in the H-plane. The small size, light weight, stable radiation performance and high polarization purity offered by the proposed SDRA make it a suitable candidate for satellite communication application.

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