Dual-Band Circularly Polarized Split Ring Resonators Loaded Square Slot Antenna

Kandasamy, Krishnamoorthy; Mukherjee, Jayanta; Ray, K. P.

doi:10.1109/tap.2016.2565729

Cited by 90 publications

(70 citation statements)

References 21 publications

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“…It is due to the asymmetrical placing between trimmed slot and V‐shaped patch. However, it is useful for land mobile communication antennas . From Figure , it is experimentally proved that sense of polarization of proposed radiator can be altered by using mirror image of the modified slot.…”

Section: Resultsmentioning

confidence: 90%

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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: Resultsmentioning

confidence: 90%

“…Electric and magnetic dipole combination creates orthogonal electric field components. Diagonal trimming of square shaped slot generates 90° phase difference between these orthogonal field components …”

Section: Antenna Analysismentioning

confidence: 99%

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

Sharma

Das

Gangwar

2017

Micro & Optical Tech Letters

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“…Figure 5 shows the modification in antenna structure in order to obtain the CP wave in both frequency bands. λ × Path delay) [26]. Similarly, perturbation on the two opposite sides produces CP wave in upper frequency band, shown in Figure 6(b).…”

Section: Principle Of Cp Wavementioning

confidence: 89%

Investigation on Circularly Polarized Ring Dielectric Resonator Antenna for Dual-Band Wireless Applications

Pathak¹,

Sharma²,

Kushwah³

2017

PIER M

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Abstract-In this article, design and analysis of a dual-band ring dielectric resonator based radiator with circular polarization features is explored. The presented ring DRA is excited with the help of a tilted modified square-shaped aperture. Two important attractive features of the present article are: (i) two radiating modes originated inside the ring DRA, i.e., HEM 11δ and HEM 12δ mode; (ii) tilted modified square aperture generates circular polarized (CP) wave in both the operating frequency bands. For verifying the simulated results, practical model of the proposed antenna has been fabricated and verified. Experimental outcomes display that the proposed radiator functions over dual frequency bands, i.e., 2.8-3.58 GHz and 5.5-5.92 GHz respectively. 3-dB axial ratio (AR) frequency ranges of the proposed radiator are 2.8-3.2 GHz and 5.85-6.0 GHz, respectively. These appearances make it appropriate for some important wireless applications such as wireless LAN (2.4/5.2 GHz) and WiMAX (2.5 GHz) applications.

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“…In Reference , the design of a CP square slot antenna was shown using connected SRRs to obtain ARBWs of 3.1% and 4.2% at 3.1 and 4.7 GHz, respectively. In Reference , a switchable dual/triple band slot antenna with CP characteristics was designed using L‐shaped feeding stub, modified open SRR, and CSRR.…”

Section: Introductionmentioning

confidence: 99%

A corner expanded slot antenna loaded with copper strips for dual‐band circular polarization characteristics

Paul

Kandasamy

Sharawi

2019

Micro & Optical Tech Letters

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In this article, the design and implementation of a dual‐band circularly polarized (CP) microstrip line fed square slot antenna with compact size is proposed. The proposed CP antenna consists of a square slot antenna with a pair of symmetric rectangular extensions on opposite corners and loaded with an array of inclined and truncated rectangular copper strips. The square slot with diagonal extensions resonates at 2.24 to 2.62 GHz with a 3 dB axial ratio (AR) bandwidth of 15.7%. Besides, loading it with an array of inclined and truncated rectangular copper strips helps produce a resonance at higher band with CP. The higher band operates between 3.26 and 5.18 GHz and centered at 4.52 GHz, with a 3 dB AR bandwidth of 45.5%. The polarization sense and resonant frequency of the proposed antenna can be independently tuned depending on the position and dimensions of the slot and strips, respectively. The proposed antenna is fabricated and measured in terms of impedance bandwidth, axial ratio bandwidth, peak gain, and radiation efficiency. Good agreement between the simulations and measurements of the prototype is obtained.

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Dual-Band Circularly Polarized Split Ring Resonators Loaded Square Slot Antenna

Cited by 90 publications

References 21 publications

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

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

Investigation on Circularly Polarized Ring Dielectric Resonator Antenna for Dual-Band Wireless Applications

A corner expanded slot antenna loaded with copper strips for dual‐band circular polarization characteristics

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