Design of compact patch antenna based on metamaterial for WiMAX applications with circular polarization

Kuhestani, Hamed; Rahimi, Maryam; Mansouri, Zahra; Zarrabi, Ferdows B.; Ahmadian, Rahele

doi:10.1002/mop.28846

Cited by 20 publications

(19 citation statements)

References 18 publications

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“…. It concludes that Antenna‐6 provides excellent size reduction, lower profile, electrically smaller size, acceptable impedance bandwidth, improved gain, and no use of complex vias compared with existing designs presented in References confirms that the presented antenna is suitable for modern wireless applications.…”

Section: Resultsmentioning

confidence: 57%

Electrically small circularly polarized antenna using vialess CRLH‐TL and fractals for L‐band mobile satellite applications

Ameen

Chaudhary

2019

Micro & Optical Tech Letters

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This paper explains the design and development of an electrically small (ka = 0.59) circularly polarized (CP) antenna based on vialess composite right/left‐handed (CRLH) transmission line (TL) and third‐iterative fractals (TIF) applicable for 1.637 GHz L‐band mobile satellite applications. The idea behind the CP antenna originates from the combination of curved meander line inductor on the top side of the substrate back coupled with TIF in backside of the substrate. The loading of TIF provides an increased level of cross polarization by adjusting the dimensions of TIF which is almost equal to the main polarization level of original CRLH‐TL loaded antenna on the top side of the substrate. Due to this, the antenna can generate two orthogonally polarized modes for supporting CP radiation with excellent miniaturization and improved gain. The overall dimensions of the proposed antenna are 22 × 27 × 1.27 mm with radiating element size including the ground plane are 0.11λ0 × 0.14λ0 × 0.006λ0 at 1.635 GHz. The proposed antenna can provide excellent miniaturization of 68.51% compared with the conventional monopole antenna with improved radiation performance. The antenna provides an acceptable impedance bandwidth of 0.73%, improved gain of 1.79 dBi without using complex vias, excellent miniaturization, and low profile (0.006 λ0) compared to existing similar type of antennas in the literature.

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Section: Resultsmentioning

confidence: 57%

Electrically small circularly polarized antenna using vialess CRLH‐TL and fractals for L‐band mobile satellite applications

Ameen

Chaudhary

2019

Micro & Optical Tech Letters

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“…CP can be excited in a patch by generating two equal orthogonal modes with quadrature phase shift. The technique to generate CP by creating perturbation in the patch is demonstrated in References . But the antennas using the perturbation technique suffer low AR BW (< 2%).…”

Section: Introductionmentioning

confidence: 99%

A wideband dual‐circularly polarized 2 × 1 array antenna using multi‐layer substrate for compact structure

Rahman

Nishiyama

Toyoda

2019

Micro & Optical Tech Letters

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A novel compact dual‐circularly polarized (CP) 2 × 1 microstrip array antenna with wideband characteristic is proposed. The antenna is realized using multi‐layer technique. The antenna consists of two orthogonally fed patch elements integrated with a 90° branch‐line coupler for achieving dual‐CP operation. The complete feed network, inspired by double‐sided MIC technology, is designed using microstrip lines and slot lines distributed in different three metal layers. ±90° out‐of‐phase signals caused by the branch‐line coupler are combined with two orthogonal feed lines of the patches to excite right‐hand circular polarization (RHCP) or left‐hand circular polarization (LHCP). More than 40% size reduction is achieved by employing multilayer structure instead of single‐layer structure. The measured 3‐dB axial ratio bandwidths of RHCP/LHCP are 8.31/10.19%. Peak gain is more than 9 dBic with good CP radiation performance. The antenna performance is validated by measured data.

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“…A small circular patch surrounded by two concentric annular-rings that are loaded by an unequal lateral cross-slot ground plane has been presented for dual-band CP operation [8]. A CP antenna using metamaterial for WiMAX applications has been presented in [9], wherein two split ring resonators (SRR) are implemented to realize CP. The SRR structure changes the current path on the antenna to create a loop.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Slot-Embedded Microstrip Antenna for Dual-Polarization Operation

Rahman¹,

Nishiyama²,

Toyoda³

2018

PIER M

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Abstract-In this study, a new slot embedded microstrip antenna for dual-band dual-polarization operation is proposed. The antenna comprises a single layer structure with a square radiating patch where the feed port is located along a diagonal line of the patch. Two narrow slots parallel and close to the radiating edges of the patch are loaded on the patch. Patch without slots is resonated for X-band and another resonant frequency at Ku-band is obtained by loading the slots. Moreover, the loading of slots helps to produce two orthogonal modes of equal amplitudes at X-band. Furthermore, the feed port along the diagonal line of the square patch makes it possible to radiate different polarization at the two bands. The antenna can radiate circular and linear polarization at X-and Ku-band, respectively. Current distributions of the antenna at both bands are observed to explain the behavior of the antenna and confirm the polarization characteristics at X-and Ku-band. A 3-dB axial ratio bandwidth of 1.35% is achieved. Measured gains of 6.60 dBic and 5.80 dBi with good radiation performances are achieved at X-and Ku-band, respectively. Moreover, good measured cross-polarization levels of 27.6 dB at Xband and 15.6 dB at Ku-band are obtained. The measured performances of the fabricated antenna are consistent with simulated results.

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Design of compact patch antenna based on metamaterial for WiMAX applications with circular polarization

Cited by 20 publications

References 18 publications

Electrically small circularly polarized antenna using vialess CRLH‐TL and fractals for L‐band mobile satellite applications

Electrically small circularly polarized antenna using vialess CRLH‐TL and fractals for L‐band mobile satellite applications

A wideband dual‐circularly polarized 2 × 1 array antenna using multi‐layer substrate for compact structure

A Dual-Band Slot-Embedded Microstrip Antenna for Dual-Polarization Operation

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