Spaceborne Multibeam Phased Array Antennas for Satellite Communications

Yu, Li; Wan, Jixiang; Zhang, Kai; Teng, Fei; Lei, Liujie; Liu, Yukai

doi:10.1109/maes.2022.3231580

Cited by 11 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multibeam antenna can provide extremely high equivalent isotropic radiated power and gain-tonoise-temperature value, thus greatly improves the communication capacity of the satellite. [1][2][3] Usually, single-offest reflector and dual-offest reflector are used to design multibeam antenna for eliminating the effect of feed and secondary reflector. However, the asymmetry of reflector structure itself leads to the deterioration of cross-polarization (XP) and the value is generally about −25 dB, 4,5 which does not meet the high requirement in some special system.…”

Section: Introductionmentioning

confidence: 99%

“…Multibeam antenna can provide extremely high equivalent isotropic radiated power and gain‐to‐noise‐temperature value, thus greatly improves the communication capacity of the satellite 1–3 . Usually, single‐offest reflector and dual‐offest reflector are used to design multibeam antenna for eliminating the effect of feed and secondary reflector.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of multibeam antenna with ultralow cross‐polarization

Tao,

Wang,

Wan

et al. 2024

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

This paper presents a design to realize extremely low cross‐polarization level in multibeam antenna. The antenna consists of two reflectors placed on top of each other. The front reflector is a panel made of metal grid, which is used to separate two orthogonal polarizations. The rear reflector serves as the actual multibeam antenna surface. The multibeam antenna and feed array operated at Ku band are designed and fabricated. The test results show that the gains of the 28 beams can be better than 40.42 dBi, and the cross‐polarization level can be lower than −40 dB. The proposed method provides a novel idea for the design of ultralow cross‐polarization multibeam antenna.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of multibeam antenna with ultralow cross‐polarization

Tao,

Wang,

Wan

et al. 2024

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

show abstract

“…Atomic antennas with isotropic response [5] are needed in many situations, such as wide-beam scanning [17], aerospace communications [18], and precision measurement calibration of electromagnetic fields [19]. Nevertheless, field-enhanced atomic antennas [12,13,14,15,16] will cause reception blind spots at particular angles.…”

Section: Introductionmentioning

confidence: 99%

Eliminating sensing blind spots of field-enhanced Rydberg atomic antenna via an asymmetric parallel-plate resonator

Wu,

zhou,

Ding

et al. 2024

Preprint

View full text Add to dashboard Cite

Due to its large electric dipole moment, the Rydberg atom exhibits a strong response to weak electric fields, hence it is regarded as a highly promising atomic antenna. However, to enhance the reception sensitivity, split-ring resonators are needed normally, which will brings sensing blind spots. Thus it is not conducive to the application of full-coverage space communication. Here we propose that an atomic antenna with an asymmetric parallel-plate resonator, can not only enhance the received signal, but also eliminate sensing blind spots (pattern roundness can reach 7.8 dB while the split-ring resonator can be up to 39 dB). We analyze the influence of structural parameters on the field enhancement factor and directionality, and further discuss the limitation of the sensitivity by using thermal resistor noise theory.This work is expected to pave the way for the development of field-enhanced Rydberg atomic antennas that communicate without a blind spot.

show abstract

“…Modern wireless systems, such as 5G and emerging 6G millimeter Wave (mmWave) systems [3,[10][11][12], utilize transmit beamformers at the access point. Furthermore, modern satellite transceivers [13][14][15][16][17][18] employ multibeam transmit beamformers to achieve wide-area coverage. Apertures consisting of antenna arrays with a large number of elements are to be expected, given that massive multi-input multi-output (MIMO) access is the dominant technology driving future wireless systems [1,3,19].…”

Section: Introductionmentioning

confidence: 99%

Multibeam Wideband Transmit Beamforming Using 2D Sparse FIR Trapezoidal Filters

Dissanayake,

Edussooriya,

Wijenayake

et al. 2024

JLPEA

View full text Add to dashboard Cite

A low-complexity multibeam wideband transmit beamformer using a 2D sparse FIR filter design capable of multiple beams is proposed as a digital building block for fully digital beamformers. The 2D sparse FIR filter has multiple trapezoid-shaped passbands pertaining to wideband beams aimed at particular directions. The proposed multibeam digital beamformer drives a uniform linear array of wideband antenna elements to achieve the wideband multibeam transmit-mode signals desired by the communication system. The 2D sparse FIR filter is designed to be optimal in the minimax sense using convex optimization techniques. Full-wave electromagnetic simulations using real antenna models confirm that the proposed wideband transmit beamformer can achieve multibeam transmission in the 1.3–2.8 GHz frequency range, with more than 70% fractional bandwidth. Furthermore, the adoption of the wideband transmit multibeam beamformer leads to a significant reduction in digital arithmetic (computational) complexity compared with previously reported wideband transmit beamformers of similar transfer function type, without deteriorating beam directionality and causing increases in the side-lobe level. The proposed sparse 2D FIR multibeam beamformer architecture is well-suited for both sub-6 GHz (legacy) band transmit beamforming, frequency range three (FR3) beamforming up to 28 GHz, and mmWave operation for emerging 5G/6G applications.

show abstract

Spaceborne Multibeam Phased Array Antennas for Satellite Communications

Cited by 11 publications

References 28 publications

Design of multibeam antenna with ultralow cross‐polarization

Design of multibeam antenna with ultralow cross‐polarization

Eliminating sensing blind spots of field-enhanced Rydberg atomic antenna via an asymmetric parallel-plate resonator

Multibeam Wideband Transmit Beamforming Using 2D Sparse FIR Trapezoidal Filters

Contact Info

Product

Resources

About