Beam-Switching antenna array with dual-circular-polarized operation for WiMAX applications

Mousavirazi, Zahra; Rafiei, Vahid; Denidni, Tayeb A.

doi:10.1016/j.aeue.2021.153796

Cited by 12 publications

(3 citation statements)

References 47 publications

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“…The AR is measured using an anechoic chamber, whose two measurements were performed with the help of the standard dipole antenna in 0 • orientation angle (for E θ ) and 90 • orientation angle (for E ϕ ). Then, using the phase-amplitude method as the following equations, the ERHCP, ELHCP, and AR are calculated [20,21]:…”

Section: Experimental Verification and Discussionmentioning

confidence: 99%

A Low-profile and Low-cost Dual Circularly Polarized Patch Antenna

Mousavirazi¹,

Naserri²,

Ali³

et al. 2022

PIER Letters

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This paper presents a low profile and low-cost patch antenna with dual circularly polarized (CP) capability in X-band at a canter frequency of 8.3 GHz. The dual-CP antenna is divided into three layers, composed of a parasitic square patch, a radiation square patch with four equal arms, and a 90 • patch coupler. Two arms of the radiation patch are connected to the 90 • hybrid coupler using two metalized vias. Right-handed circular polarization (RHCP) and left-handed circular polarization (LHCP) are achieved by exciting two different ports. To validate the proposed design, the prototype of the dual-CP antenna is fabricated and measured. Based on the measurement, the structure of the proposed antenna has an excellent circular-polarization purity of less than 3 dB over the whole operational frequency bandwidth of the antenna (8 GHz-8.47 GHz) with a wide 3-dB axial ratio (AR) beamwidth of 133 • across the angular range from −55 • to +78 • at 8.3 GHz.

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Section: Experimental Verification and Discussionmentioning

confidence: 99%

A Low-profile and Low-cost Dual Circularly Polarized Patch Antenna

Mousavirazi¹,

Naserri²,

Ali³

et al. 2022

PIER Letters

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show abstract

“…The challenge of solving this problem led to applying planar structure antennas such as Microstrip and substrate integrated waveguide (SIW) antennas in designing Monopulse radar [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12]. Circularly polarized (CP) antennas have unique features such as the ability to reduce polarization mismatch resulting from the multipath interference of wave propagation and also the ability to cross the ionosphere has been considered by many researchers in various applications [4], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22].…”

Section: Introductionmentioning

confidence: 99%

Polarization Diversity Controllable Monopulse Antenna Array Design

Karamzadeh

2023

IEEE Access

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The design of a compact and wideband circularly polarized (CP) Monopulse antenna is presented. Firstly, the small-sized antenna element (13mm × 13mm), with the impedance bandwidth (BW) of 80.5% (4.3-10.1 GHz) and axial ratio (AR) bandwidth of 48.1% (6-9.8 GHz), and the gain of 7.2 dBic is designed. The array structure consists of two rat-race couplers; two metalized via holes that generate sum and difference patterns, and four branch-line couplers for CP characteristic improvement. The proposed antenna is capable of controlling CP diversity in both sum and difference beams. Additionally, with 50% BW and 25% 3-dB AR results and also with null-depth of less than −48 dB, it is a convenient design for tracking purposes.

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“…Beam‐switching antenna arrays are one of the good approaches to overcome these limitations and enhance coverage areas for mm‐wave communication applications (Ali, Al‐Hasan, Ben Mabrouk, & Denidni, 2022; Razi & Rezaei, 2020). Among all the various technologies that can be applied to design beam‐switching networks, a Butler matrix network has widely been used due to the simplest configuration compared to other matrix‐based beam‐switching networks (Mousavi & Rezaei, 2019; Mousavirazi, Rafiei, & Denidni, 2021). Crossovers that are considered 0‐dB hybrid couplers are one of the fundamental components of Butler matrix network designs (Wong & Cheng, 2011).…”

Section: Introductionmentioning

confidence: 99%

A Novel Low‐Loss Planar PRGW Crossover Design for 5G Applications

et al. 2023

Self Cite

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With the rapid move toward 5G and 6G technologies, millimeter-wave (mm-wave) wireless systems have attracted more and more consideration because of their huge unlicensed bandwidth that provides multi-gigabit per second data rates (Elsaadany et al., 2021;Farahani et al., 2017;Rashidian et al., 2022). However, this evolution of wireless communications to high-frequency bands is limited due to the high propagation loss and atmospheric absorption (Quan et al., 2022). Beam-switching antenna arrays are one of the good approaches to overcome these limitations and enhance coverage areas for mm-wave communication applications (Ali, Al-Hasan, Ben Mabrouk, & Denidni, 2022;Razi & Rezaei, 2020). Among all the various technologies that can be applied to design beam-switching networks, a Butler matrix network has widely been used due to the simplest configuration compared to other matrix-based beam-switching networks (Mousavi & Rezaei, 2019;. Crossovers that are considered 0-dB hybrid couplers are one of the fundamental components of Butler matrix network designs (Wong & Cheng, 2011). The ideal crossover has four ports to pass through two independent crossing signals with a high amount of isolation between the two paths while maintaining a zero insertion loss (Cao et al., 2020;Chu & Tang, 2018). Several research works have proposed various configurations of crossovers for example, microstrip line (MSL) (Xue et al., 2022), rectangular waveguides (RWG) (Ohta et al., 2005), and stripline (Wight et al., 1976). However, dielectric losses represent a huge drawback at high frequencies and lead to a critical problem for microstrip and stripline designs (Razi et al., 2015). Although RWGs have a lower attenuation, they are bulky and suffer from the inability to integrate with monolithic microwave integrated circuits, especially at mm-wave . Recently, substrate-integrated waveguide (SIW) and ridge-gap waveguide (RGW) technologies as one of the most recent guiding structures have significantly attracted the attention of the research community to address the loss problems at mm-wave. In Diman et al. (2021), Guntupalli et al. (2012, various types of SIW-based structures have been developed. A SIW crossover structure by cascading two 3-dB hybrid couplers with 16.6% bandwidth at 35 GHz has been designed in Guntupalli et al. (2012). Using this technique yields a large physical area. In Cao et al., 2020 and, a compact two-layer crossover based on SIW and stripline techniques at 26 GHz has been presented to miniaturize the size of the crossover but suffers from complex design. RGW and printed RGW (PRGW) are other promising technologies suitable for implementing high-frequency components (Afifi & Sebak, 2020). Compared with the SIW, the PRGW structures have better performance and simpler designs with minimal transmission losses at the mm-wave

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Beam-Switching antenna array with dual-circular-polarized operation for WiMAX applications

Cited by 12 publications

References 47 publications

A Low-profile and Low-cost Dual Circularly Polarized Patch Antenna

A Low-profile and Low-cost Dual Circularly Polarized Patch Antenna

Polarization Diversity Controllable Monopulse Antenna Array Design

A Novel Low‐Loss Planar PRGW Crossover Design for 5G Applications

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