Miniaturized Circularly Polarized Square Slot Antenna With Enhanced Axial-Ratio Bandwidth Using an Antipodal Y-strip

Nosrati, Mehrdad; Tavassolian, Negar

doi:10.1109/lawp.2016.2605099

Cited by 93 publications

(46 citation statements)

References 16 publications

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“…The geometrical schematic of the proposed 2×2 CP array is shown in Fig. 3 [31]. However, the array elements here are four truncated-corner patch antennas as shown in Fig.…”

Section: ) 2×2 Cp Antenna Array Designmentioning

confidence: 99%

Effects of Antenna Characteristics on the Performance of Heart Rate Monitoring Radar Systems

Nosrati

Tavassolian

2017

IEEE Trans. Antennas Propagat.

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This paper presents an experimental study to evaluate the effects of antenna radiation parameters on the detection capabilities of a 2.4 GHz Doppler radar used in non-contact heart rate monitoring systems. Four different types of patch antennas and array configurations were implemented on both the transmitter and receiver sides. Extensive experiments using a linear actuator were performed and several interesting and nontrivial results were reported. It is shown that using a linearly polarized single patch antenna at the transmitter and a circularly polarized antenna array at the receiver results in the highest signal quality and system performance. Proof-ofconcept experiments on human subjects further validated the suggested results. It was also shown that using the recommended antenna arrangement will boost the heart rate detection accuracy of the radar by an average of 11%.

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“…The geometrical schematic of the proposed 2×2 CP array is shown in Fig. 3 [31]. However, the array elements here are four truncated-corner patch antennas as shown in Fig.…”

Section: ) 2×2 Cp Antenna Array Designmentioning

confidence: 99%

Effects of Antenna Characteristics on the Performance of Heart Rate Monitoring Radar Systems

Nosrati

Tavassolian

2017

IEEE Trans. Antennas Propagat.

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“…Circularly polarized mode can be realized by various antenna types, such as slot antenna [1][2][3][4][5][6][7][8], coplanar waveguide model [9], and dielectric resonator antenna [10]. Among these antennas, slot antenna has attracted much attention due to the advantagious features of simple structure, wide band, and easy integration.…”

Section: Introductionmentioning

confidence: 99%

“…Using an additional open-circuited stub near the feeding port can broaden the impedance bandwidth. Table 1 manifests the performances of the proposed antenna and the antennas in [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Single-Layer and Compact Circularly Polarized Wideband Slot Antenna Based on ``Bent Feed''

Wu¹,

Wei²,

Li³

et al. 2018

PIER Letters

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Abstract-This communication presents a novel compact and wideband circularly polarized (CP) slot antenna fed by microstrip feedline. The proposed antenna consists of a corner-truncated square-ring slot patch and a novel bent strip. The CP radiation is formed by using the bent strip to excite CP resonance modes. By intruding several open stubs to the corners of the square-ring slot patch, the impedance matching and axial ratio (AR) bandwidth are improved. The measured results show that the proposed antenna has the advantage of wideband characteristics in terms of an impedance bandwidth of 90.59% (3.2-8.5 GHz) and 3-dB axial ratio bandwidth of 84.2% (3.3-8.1 GHz). The principle as well as simulated and measured results of the proposed antenna is revealed.

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“…Two rectangular parasitic elements and an I‐shape grounded stub were used to introduce 90° phase difference, thus the circular antenna is obtained. Afterwards, a novel single‐fed, wideband, circularly polarized slot‐antenna has been proposed and fabricated. In this design, wideband circular polarization was realized by introducing an antipodal Y‐strip to a square slot antenna.…”

Section: Introductionmentioning

confidence: 99%

A novel multifrequency mobile phone antenna with circularly polarized GPS application

Zhai

2018

Micro & Optical Tech Letters

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A novel multifrequency mobile phone antenna with circularly polarized Global Position System (GPS) application is presented in this research. The antenna is composed of a gradient T‐type feedline and a ring‐metal patch with 4 different branches. Specifically, T‐shaped feedline and the ring‐metal patch are contributed to resonate in 1300 MHz‐1900 MHz. Meanwhile, the phase difference generated by the four branches of varying lengths, the antenna produces circular polarization at 1575 MHz. The etching slot in the patch can make the antenna work in 2400 MHz–2700 MHz. The experimental results verify the simulations. The designed antenna can be covered in Global System for Mobile Communications/Digital Communication System/GPS/Long Term Evolution/Wireless Local Area Network/Worldwide Interoperability for Microwave Access and other system operating frequency bands, which is suitable for the current multisystem mobile phone.

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Miniaturized Circularly Polarized Square Slot Antenna With Enhanced Axial-Ratio Bandwidth Using an Antipodal Y-strip

Cited by 93 publications

References 16 publications

Effects of Antenna Characteristics on the Performance of Heart Rate Monitoring Radar Systems

Effects of Antenna Characteristics on the Performance of Heart Rate Monitoring Radar Systems

A Single-Layer and Compact Circularly Polarized Wideband Slot Antenna Based on ``Bent Feed''

A novel multifrequency mobile phone antenna with circularly polarized GPS application

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