Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Moradikordalivand, Alishir; Rahman, Tharek Abdul

doi:10.2528/pier13011714

Cited by 27 publications

(16 citation statements)

References 36 publications

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“…In the SCFC method, four corners at the edge of the patch are cut in order to produce a multiband/broadband antenna [17]. The SCFC technique is a procedure where the shape of the radiation patch is modified in order to obtain the intended frequency bandwidth.…”

Section: Configuration Of the Proposed Mimo Antennamentioning

confidence: 99%

Dual‐polarized MIMO antenna system for WiFi and LTE wireless access point applications

Moradikordalivand

Rahman

Leow

et al. 2014

Int J Communication

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In this paper, a dual-polarized multiple-input multiple-output (MIMO) antenna system suitable for indoor wireless access point is proposed. The presented MIMO antenna system consists of two coplanarwaveguide-fed monopole antennas with orthogonally polarized modes. According to the closely spaced structure of the MIMO antenna system, the mutual coupling between the ports is a big challenge. Therefore, a new structure of parasitic element is introduced in order to improve the mutual coupling between the ports. For the purpose of validating the simulated results, the antenna prototype has been fabricated and measured; the comparison of the results shows that there is an acceptable agreement between the measurement and simulation results. The proposed design covers the frequency bands of WiFi (2.4 GHz), Worldwide Interoperability for Microwave Access (2.3 and 2.5 GHz), and Long-Term Evolution (LTE; 1.5 and 2.6 GHz) applications with a reflection coefficient less than À10 dB and a mutual coupling coefficient better than À15 dB. The MIMO antenna system provides an envelope correlation coefficient less than 0.15, polarization diversity gain more than 9.985 dB, and quasi-omnidirectional pattern within the expected frequency band. In addition, LTE downlink throughput measurements show that the proposed antenna system delivers data rates close to the theoretical maximum for quadrature phase shift keying, 16 quadrature amplitude modulation (QAM), and 64-QAM modulations. coefficients (S 12 and S 21 ) without CSPE are above À9 dB, indicating low isolation between the ports. The coupling coefficients (S 12 and S 21 ) with CSPE are À17 dB, justifying that good isolation between ports has been achieved. S-parameter resultsIn order to validate the simulated results obtained from CST Microwave Studio, the prototype has been fabricated and measured. The performance of the fabricated antenna is tested using a vector network analyzer to determine the reflection coefficient, isolation, voltage standing wave ratio, and bandwidth of the proposed antennas as well their operating frequency. Figure 4. Parametric study on the gap between ring number 3 and stepped line.Figure 5. Simulated S-parameter of the proposed MIMO antenna (a) without CSPE and (b) with CSPE. 5 of 11 DUAL-POLARIZED MIMO ANTENNA SYSTEM

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Section: Configuration Of the Proposed Mimo Antennamentioning

confidence: 99%

Dual‐polarized MIMO antenna system for WiFi and LTE wireless access point applications

Moradikordalivand

Rahman

Leow

et al. 2014

Int J Communication

Self Cite

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“…The features, including their very low profile, low cost, light weight, conformal structure, mechanical ruggedness, and ease in fabrication and integration with solid-state devices, make them important, especially for applications mounted on the exterior of aircraft and spacecraft or incorporated into mobile radio communications devices [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…MPAs comprise narrow bandwidth that is approximately 1-5%, which is the most major limiting factor for its widespread applications [1]. The conventional microstrip antenna is a metallic patch printed on a thin, grounded isotropic dielectric substrate [4].…”

Section: Introductionmentioning

confidence: 99%

“…The conventional microstrip antenna is a metallic patch printed on a thin, grounded isotropic dielectric substrate [4]. Even though conventional patch antennas have the major weaknesses of narrowband and low gain, there are several techniques to overcome these weaknesses [1]. This warrants new research on possible methods of performance enhancement, employing other types of substrate materials and antenna geometries [4][5].…”

Section: Introductionmentioning

confidence: 99%

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Full-wave Analysis of Rectangular Microstrip Antenna Printed on Electric-Magnetic Uniaxial Anisotropic Substrates

Hassad

Boughrara²,

Fortaki

2014

IJFGCN

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“…However, a microstrip antenna posses the drawbacks of low gain, narrow BW (typically 5%) [14,15], and low efficiency and power [16]. Various research efforts have been and are still being made to improve microstrip antenna performance.…”

Section: Introductionmentioning

confidence: 99%

The Improvement of Array Antenna Performance With the Implementation of an Artificial Magnetic Conductor (Amc) Ground Plane and in-Phase Superstrate

Dewan¹,

Rahim²,

Ausordin³

et al. 2013

PIER

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Abstract-This paper discusses performance improvement with the integration of an artificial magnetic conductor (AMC) into array antennas. An AMC with defected ground structure (DGS) was designed to construct the AMC ground plane and in-phase superstrate. The two distinguishable structures were integrated into an array antenna, which serves as a reference antenna at 5.8 GHz. The impedance bandwidth (BW) of the reference antenna significantly improved to 287% when integrated with an AMC ground plane and with 37% reduced size. On the other hand, the integration of inphase superstrate effectively enhances the gain and BW of the reference antenna by 1 dBi and 44%, respectively. The effects of air gaps on the reference antenna with both the AMC ground plane and inphase superstrate are discussed. The antenna performance factors, such as return loss and radiation pattern, are also discussed for the reference antenna, the reference antenna with the AMC ground plane, and the reference antenna with in-phase superstrate, respectively. There is satisfactorily good agreement between the simulation and measurement results. The proposed antenna is useful in and applications.

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Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Cited by 27 publications

References 36 publications

Dual‐polarized MIMO antenna system for WiFi and LTE wireless access point applications

Dual‐polarized MIMO antenna system for WiFi and LTE wireless access point applications

Full-wave Analysis of Rectangular Microstrip Antenna Printed on Electric-Magnetic Uniaxial Anisotropic Substrates

The Improvement of Array Antenna Performance With the Implementation of an Artificial Magnetic Conductor (Amc) Ground Plane and in-Phase Superstrate

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