Skip to Main content Skip to Navigation
New interface
Journal articles

Shaped Parallel-Plate Lens for Mechanical Wide-Angle Beam Steering

Abstract : This paper presents a parallel-plate lens beamformer for continuous wide-angle scanning. The design is based on a compact dual-lens system with extended scanning range and is optimized using a previously developed geometrical optics technique. Beam steering is accomplished with a mechanical feed system based on the non-contact characteristic of groove gap waveguides, offering large bandwidth, low profile, and mechanical ruggedness. The proposed concept is validated by an all-metal prototype of a 20.5-and#x03BB; lens operating in the uplink Ka-band allocated to satellite communications (27.5 and#x2013; 31 GHz). Good agreement is obtained between the simulated and measured performance. The measured return loss is greater than 12 dB over the entire frequency band and beyond. High scanning performances are achieved over an angular range of and#x00B1;50and#x00B0; (and#x00B1;14 beamwidths), with maximum scan losses in the order of 3 dB and good pattern stability over the entire band. The proposed solution is particularly suited for next-generation satellite terminals requiring compact broadband antennas with continuous beam steering capability over a large angular range.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03480254
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Wednesday, December 15, 2021 - 1:18:13 PM
Last modification on : Wednesday, April 27, 2022 - 4:28:47 AM
Long-term archiving on: : Wednesday, March 16, 2022 - 6:53:30 PM

File

Ströber et al-2021-Shaped Par...
Files produced by the author(s)

Identifiers

Citation

T. Strober, S. Tubau, E. Girard, H. Legay, G. Goussetis, et al.. Shaped Parallel-Plate Lens for Mechanical Wide-Angle Beam Steering. IEEE Transactions on Antennas and Propagation, 2021, ⟨10.1109/TAP.2021.3090789⟩. ⟨hal-03480254⟩

Share

Metrics

Record views

53

Files downloads

42