Wideband circularly polarised array antenna with flat‐top beam pattern

Zhang, Zhi-ya; Liu, Neng-wu; Zuo, Shaoli; Li, Yang; Fu, Guang

doi:10.1049/iet-map.2014.0689

Cited by 31 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This article investigates the SBPS problem by optimizing the array weight. Two typical SBPs, including the flat-top beam pattern [10][11][12] and the cosecant square beam pattern [13][14][15] would be discussed. These two types of patterns are commonly used in 4G communication and satellite communication.…”

Section: Introductionmentioning

confidence: 99%

Analytical scannable‐shaped beam pattern synthesis via superposition principle

Lei

Chen

Lin

et al. 2021

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

A shaped beam pattern (SBP) synthesis algorithm, which obtains the desired SBP in an analytical way, is proposed. The new algorithm describes the SBP with the weighted superposition of a set of pencil beam patterns (PBPs). First, the array weight of the PBP is obtained via analytical algorithms, such as; Chebychev and Taylor, etc. Then, by computing the weights of the PBPs with the least-square method, the synthesized SBP is expressed explicitly. Different from the state-of-the-art algorithms, the proposed algorithm can obtain the desired SBP analytically, avoiding the time-consuming iteration processes. Moreover, the proposed algorithm enables the array antenna to scan the beam in different directions. Simulations with linear and planar array antennas are provided to assess the superiority and effectiveness of the proposed algorithm. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Section: Introductionmentioning

confidence: 99%

Analytical scannable‐shaped beam pattern synthesis via superposition principle

Lei

Chen

Lin

et al. 2021

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

show abstract

“…A leaky‐wave antenna working at 10 GHz is optimised to shape the flat‐top pattern, the angular range is ±8.6° with a ripple of 1 dB, and the operating band is 7% [6]. In [7], a circular polarisation array antenna with flat‐top beam operating from 1.1 to 1.6 GHz covers ±12° in the elevation plane, the ripple is better than 0.92 dB.…”

Section: Introductionmentioning

confidence: 99%

Broadband compact smooth horn with flat‐top radiation pattern

Wang

Yao

et al. 2019

Electron. lett.

View full text Add to dashboard Cite

A broadband compact smooth horn with flat-top radiation pattern is presented in this Letter. Using a large flare angle, the whole length of the horn is reduced to 1.875λ c (λ c is the wavelength of 95 GHz) and the TE 21 mode and higher order electromagnetic modes can be excited to exhibit flat-top radiation performance. The measured radiation pattern of the presented horn can achieve <1 dB amplitude ripple in a beam width range of ±10°at 85-105 GHz (21%) where the reflection coefficient is below −22 dB. It indicates that the broadband compact smooth horn with flat-top radiation pattern can be applied in wireless communication and reflector systems in the millimetre-wave band.

show abstract

“…In modern communication and radar systems, a differential phase shifter has been extensively integrated into phased-array antennas [1], beamforming networks [2] to digitally control the beam direction and into antenna feeding networks [3] to realise the circular polarisation. Many research studies have been reported on the development of a variety of differential phase shifters [4][5][6][7][8][9][10][11][12][13][14][15] with the wideband property, small phase deviation, low amplitude imbalance and reasonable process cost.…”

Section: Introductionmentioning

confidence: 99%

Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

Lyu

Cheng

2017

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

A new class of wideband differential phase shifters employing two distinctive multimode resonators both in main and reference lines is presented. Compared with their counterparts, the proposed phase shifter firstly can achieve wideband phase shift and good filtering function with controllable same insertion loss (IL) bandwidth in main and reference lines as required. To design two phase‐shifting elements with design indices (phase‐shift value, return loss, and operating bandwidth), an effective synthesis method is presented and sets of design curves are graphically demonstrated. Prototype phase shifters are then fabricated and measured. Finally, the design approach is validated experimentally. It is shown that the proposed phase shifters achieve 90° ± 2.3° and 45° ± 2.0° over the prescribed band 2.26–3.72 GHz (48%) and 2.04–4.03 GHz (66%). The good frequency selectivity with the same IL bandwidth is obtained and out‐of‐band rejection is >30.2 and 26.4 dB up to 7.0 GHz.

show abstract

Wideband circularly polarised array antenna with flat‐top beam pattern

Cited by 31 publications

References 20 publications

Analytical scannable‐shaped beam pattern synthesis via superposition principle

Analytical scannable‐shaped beam pattern synthesis via superposition principle

Broadband compact smooth horn with flat‐top radiation pattern

Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

Contact Info

Product

Resources

About