Design of a Wideband Dual-Feed Circularly Polarized Antenna for Different Axial Ratio Requirements

Wen, Lehu; Gao, Steven; Luo, Qi; Hu, Wei; Sanz-Izquierdo, Benito

doi:10.1109/lawp.2020.3041362

Cited by 13 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…by various technical solutions. The techniques, including using a slotting the radiation patch [1], a sequentially fed stacked CP patch [4], the quadrature feed networks [5], Wilkinson power splitter [6] and balun bandpass filter [2], have been reported. However, these methods also bring some drawbacks, such as narrow bandwidth, narrow ARBW or HPBW, high cost, low utilization rate of plates, large loss, and so on.…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Cross-Dipole Antenna for UHF RFID Readers Applicated in the Warehouse Environment

Xue¹,

Zhang

Li³

et al. 2023

IEEE Access

View full text Add to dashboard Cite

In this paper, we proposed a broadband circularly polarized antenna with wide beamwidth. The main structure of the proposed antenna is a combined cross-polarized dipole antenna with four metal arms feeding by a single coaxial cable and two 90°phase delay lines. In order to attain a wide beamwidth antenna performance that can be used in a warehouse environment, we innovatively bent the metal arms and added a metal plane at a specific location to gain maximum beamwidth and the highest achievable gain. Especially, the application of folded metal arms not only reduce the space size of antenna, but also possess good axial ratio characteristic. The measurement illustrates that the antenna prototype achieves S 11 < -10 dB impedance bandwidth (IBW) of 40% (820 -1230 MHz), a 3-dB axial ratio bandwidth (ARBW) of 7.3% (895 -970 MHz), and a maximum half-power beamwidth (HPBW) of 104°(@915 MHz). In addition, the good radiation characteristics of a gain of 6.33 dBic and an average radiation efficiency of 76.3% were measured in the operating bandwidth, in which make the antenna a good candidate for the hasty logistics radio frequency identification (RFID) system.INDEX TERMS Wide beamwidth, Circular polarization (CP), single feed, cross-polarized dipole, folded metal arms, RFID

show abstract

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Cross-Dipole Antenna for UHF RFID Readers Applicated in the Warehouse Environment

Xue¹,

Zhang

Li³

et al. 2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Recently, circularly polarized antennas have been made by using single feed [16,17], dual feed [18][19][20][21][22], or a sequential phase feed (multiple-feeds) [23][24][25][26][27]. Using single feeds can reduce the design complexity, but they have narrow 3 dB AR bands [16] or low gain and radiation efficiency [17].…”

Section: Introductionmentioning

confidence: 99%

“…However, those antennas require large sizes and suffer from complicated designs. High gain and wide AR bandwidth are achieved by using a wideband quadrature coupler [21] or branch-line coupler [22] feeding to dipoles. Complicated designs and large sizes are some limitations to using an RF harvester.…”

Section: Introductionmentioning

confidence: 99%

Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors

Nguyễn

2021

Sensors

View full text Add to dashboard Cite

In this work toward a sustainable operation of a self-powered wireless sensor, we investigated a multiband Wi-Fi/3G/4G/5G energy harvester based on a novel wideband circularly polarized antenna, a quadplexer, and rectifiers at four corresponding bands. This proposed antenna consisted of four sequentially rotated dual-dipoles, fed by a hybrid feeding network with equal amplitude and an incremental 90° phase delay. The feeding network was composed of three Wilkinson power dividers and Schiffman phase shifters. Based on the sequential rotation method, the antenna obtained a −10 dB reflection coefficient bandwidth of 71.2% from 1.4 GHz to 2.95 GHz and a 3 dB axial ratio (AR) bandwidth of 63.6%, from 1.5 GHz to 2.9 GHz. In addition, this antenna gain was higher than 6 dBi in a wide bandwidth from 1.65 GHz to 2.8 GHz, whereas the peak gain was 9.9 dBi. The quad-band rectifier yielded the maximum AC–DC conversion efficiency of 1.8 GHz and was 60% at −1 dBm input power, 2.1 GHz was 55% at 0 dBm, 2.45 GHz was 55% at −1 dBm, and 2.6 GHz was 54% at 0.5 dBm, respectively. The maximum RF–DC conversion efficiency using the wideband circularly polarized antenna was 27%, 26%, 25.5%, and 27.5% at −6 dBm of input power, respectively.

show abstract

Dual-Band Dual-Linearly/Circularly polarized Shared-Aperture antenna for satellite communication systems

Ran

Cheng

Wang

et al. 2022

AEU - International Journal of Electronics and Communications

View full text Add to dashboard Cite

Design of a Wideband Dual-Feed Circularly Polarized Antenna for Different Axial Ratio Requirements

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 13 publications

References 14 publications

Circularly Polarized Cross-Dipole Antenna for UHF RFID Readers Applicated in the Warehouse Environment

Circularly Polarized Cross-Dipole Antenna for UHF RFID Readers Applicated in the Warehouse Environment

Multiband Ambient RF Energy Harvester with High Gain Wideband Circularly Polarized Antenna toward Self-Powered Wireless Sensors

Dual-Band Dual-Linearly/Circularly polarized Shared-Aperture antenna for satellite communication systems

Contact Info

Product

Resources

About