Dual-Band and Dual-Sense Omnidirectional Circularly Polarized Antenna

Pan, Yong; Zheng, Shao Yong; Li, Weiwei

doi:10.1109/lawp.2014.2314744

Cited by 83 publications

(52 citation statements)

References 9 publications

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“…The proposed radiator has not only better 3-dB axial ratio bandwidth but it has also lesser fabrication complexity (as compared to Refs. [9][10][11]). Figure 11 shows measured RHCP and LHCP patterns of antenna 1 and antenna 2 in XZ-plane at 2.8 and 5.18 GHz (minimum axial ratio frequency), respectively.…”

Section: E X P E R I M E N T a L R E S U L T Smentioning

confidence: 99%

“…10 Similarly, cylindrical DRA (CDRA) along with a circular patch (on top of the CDRA) and dual notch loaded CDRA with aperture coupling are also show dual band CP characteristics. 11,12 In the proposed article, dual-band circularly polarized hybrid antenna is presented and examined. A dual-band characteristic is generated with the help of a hybrid antenna (combination of slot-CDRA) concept.…”

Section: Introductionmentioning

confidence: 99%

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Dual‐band circularly polarized hybrid antenna for WLAN/WiMAX applications

Sharma

Das

Gangwar

2017

Micro & Optical Tech Letters

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In this article, a dual‐band circularly polarized hybrid antenna is examined and discussed. In this composition, the diagonally trimmed square shaped slot (modified slot) acts as a radiator and the feeding network of CDRA. Modified slot has been adopted to excite the orthogonal modes ( HE11δx and HE11δy) in CDRA, which is responsible for the origination of circularly polarized (CP) waves in lower frequency band (2.68–3.04 GHz). Furthermore, a combination of V‐shaped microstrip line with modified slot is utilized to generate CP waves in upper frequency band (5.12–5.34 GHz). The sense of polarization can be altered by taking mirror image of the modified slot. To verify the simulated outcomes, the archetype of proposed design is fabricated and tested. Experimental results show good settlement with simulated results. The proposed radiator operates over two frequency bands, i.e. 2.36–3.22 GHz and 5.0–5.34 GHz with the fractional bandwidth of 30.82 and 6.57%, respectively. Measured 3‐dB axial ratio bandwidth is ∼12.20 and 4.2% in lower and upper frequency band, respectively. The proposed antenna structure is quite appropriate for WLAN (2.4/5.2 GHz) and WiMAX (2.5 GHz) applications.

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Section: E X P E R I M E N T a L R E S U L T Smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual‐band circularly polarized hybrid antenna for WLAN/WiMAX applications

Sharma

Das

Gangwar

2017

Micro & Optical Tech Letters

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“…7 In open literature, different dual-band circularly polarized dielectric resonator based antennas have been reported. [8][9][10][11][12][13][14] Fang et al proposed a dual band circularly polarized cylindrical dielectric resonator antenna (DRA) with the assistance of quadrature coupler. It provides Axial Ratio (AR) bandwidth of 12.4% and 7.4% in lower and upper frequency band respectively.…”

Section: Introductionmentioning

confidence: 99%

“…10 After that, asymmetrical cross slot and metallic patch loaded DR elements have also been used to obtain dual-band CP waves. 11,12 Currently, some of researchers have used different modifications in basic shape of dielectric resonator for obtaining dual-band CP waves such as notch loaded truncated cylindrical DRA (CDRA) and Fan blade shaped DRA. 13,14 This article explains the design and analysis of dual element cylindrical dielectric resonator based circularly polarized antenna.…”

Section: Introductionmentioning

confidence: 99%

A dual-band circularly polarized antenna with aid of dual cylindrical dielectric resonator blocks

Gupta

Sharma²,

Das

et al. 2018

Int J RF Microw Comput Aided Eng

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In this communication, a dielectric resonator based circularly polarized antenna is designed and investigated. A modified aperture is used to excite dual cylindrical dielectric resonator (CDR) blocks. Two important characteristics of the proposed radiator that makes it all the more attractive are as follows: (i) excitation of dual radiating modes that is, HEM11δ and TE01δ mode in cylindrical DR along with the support of dual‐band circularly polarized (CP) waves; (ii) arrangements of dual CDR blocks to reduce the Q‐factor which is useful to enhance the impedance bandwidth of both frequency bands. Fabrication as well as experimental measurement of the antenna prototype has been done for verifying simulation outcomes. This antenna design operates over dual frequency bands, that is, 5.01‐6.41 GHz and 7.3‐7.9 GHz with the fractional bandwidth of 24.73% and 9.39%, respectively. It supports CP waves over the frequency range 6.1‐6.5 GHz and 7.4‐7.8 GHz. The proposed antenna backs right‐hand circularly polarized (RHCP) radiation with an average gain of 4.5 dBi. These characteristics make it well fitted for WLAN, WiMAX (5.2/5.5/5.8 GHz), and downlink defense purpose satellite communication (7.2‐7.7 GHz).

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“…[4][5][6][7][8] Similarly, some research articles are also available on circularly polarized DRA like chamfered rectangular DRA, grooved rectangular DRA, hybrid Z-shaped CDRA, aperture coupled dual notch loaded cylindrical DRA, stairshaped DRA, hybrid CDRA and dual-polarized integrated CDRA. [9][10][11][12][13][14][15] Analysis and design of dual-band circularly polarized ring DRA is investigated in this communication. Reformed square-shaped aperture is not only used to stimulate the ring DRA but also behave as a radiator.…”

Section: Introductionmentioning

confidence: 99%

Dual-band circularly polarized dielectric resonator antenna for wireless applications

Pathak

Sharma

Kushwah³

2018

Int J RF Microw Comput Aided Eng

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This letter investigates an integrated antenna configuration for WLAN/WiMAX applications. The proposed composite antenna configuration is simply the grouping of ring dielectric resonator along with reformed square‐shaped slot antenna. Three significant characteristics of proposed article are: (1) aperture act as magnetic dipole and excite HE11δ mode in ring dielectric resonator antenna; (2) reforming of square aperture generates orthogonal modes in ring DRA and creates CP in lower frequency band; (3) annular‐shaped Microstrip line along with reformed square aperture creates CP wave in upper frequency band. With the purpose of certifying the simulated outcomes, prototype of proposed structure is fabricated and tested. Good settlement is to be got between experimental and software generated outcome. Experimental outcomes show that the proposed radiating structure is operating over 2 frequency bands that is, 2.88‐3.72 and 5.4‐5.95 GHz. Measured 3‐dB axial ratio bandwidth in lower and upper frequency band is approximately 9.52% (3.0‐3.4 GHz) and 5.85% (5.64‐5.98 GHz), respectively. These outcomes indicate that the proposed composite antenna structure is appropriate for WLAN and WiMAX applications.

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Dual-Band and Dual-Sense Omnidirectional Circularly Polarized Antenna

Cited by 83 publications

References 9 publications

Dual‐band circularly polarized hybrid antenna for WLAN/WiMAX applications

Dual‐band circularly polarized hybrid antenna for WLAN/WiMAX applications

A dual-band circularly polarized antenna with aid of dual cylindrical dielectric resonator blocks

Dual-band circularly polarized dielectric resonator antenna for wireless applications

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