Circularly Polarized Monopole L-Shaped Slot Antenna With Enhanced Axial-Ratio Bandwidth

Pazoki, R.; Kiaee, Ali; Naseri, Parinaz; Moghadas, Hamid; Oraizi, Homayoon; Mousavi, Pedram

doi:10.1109/lawp.2015.2492918

Cited by 30 publications

(16 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, if two-point feeding technique or addition active components are added to the circuit then it compromises the compactness of antenna and increases circuit complexity [8]. There are number of techniques that have been used for enhancing axial ratio bandwidth in particular [9], [10]. With the introduction of various topological modifications, an improvement in antenna performance (both in terms of electrical and field characteristics but also size reduction) can be obtained.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications

Ullah¹,

Koziel²

2019

RADIOENGINEERING

View full text Add to dashboard Cite

A novel topologically modified structure of a compact low profile wide-slot antenna for broadband applications is presented. The antenna comprises a modified E-shaped slot with unequal arm lengths in the ground plane, and a parasitic quasi-rectangular loop placed coplanar with the feedline. For exciting orthogonal modes with equal amplitude, a single-point feeding technique with an asymmetrical geometry of the coplanar waveguide is used to feed the antenna. A multi-stage EM-driven optimization is used to rigorously optimize all the parameters for best impedance bandwidth and axial ratio bandwidth. The total footprint of the antenna is only 0.71 λ g 2 and a 41% impedance bandwidth along with 33% axial ratio bandwidth has been achieved which covers several WLAN and WiMAX bands.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications

Ullah¹,

Koziel²

2019

RADIOENGINEERING

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

“…The length of a conventional closed-slot antenna is usually half wavelength; however, the length of an open-slot antenna is usually about a quarter-wavelength [8,9]. Many works for CP open-slot antennas have been proposed [10][11][12][13][14][15]. In [11], an L-shaped open-slot antenna with CP is first presented to operate at the GPS band of 1.57 GHz.…”

Section: Introductionmentioning

confidence: 99%

“…In [11], an L-shaped open-slot antenna with CP is first presented to operate at the GPS band of 1.57 GHz. In [12], the L-shaped open-slot achieves a wide CP bandwidth of 64% by introducing two rotated parasitic patches. In [13], a microstrip-fed open-slot antenna with a bent feeding structure and three slots achieves dual-band circular polarization.…”

Section: Introductionmentioning

confidence: 99%

A Simple v-Shaped Slot Antenna With Broadband Circular Polarization

Huang¹,

Wang²

2017

PIER Letters

View full text Add to dashboard Cite

Abstract-In this paper, a simple broadband circular polarization (CP) V-shaped slot antenna is developed. The CP antenna consists of Z-shaped feedline with a stub and a patch, and symmetrically etched two right-angled V-shaped slots (an open slot and a closed slot) along the center line. The stub is introduced for multi-resonances to obtain broadband. The broad CP and impedance bandwidths overlap by the symmetrically etched right-angled V-shaped closed slot along the center line and the Z-shaped feedline placed in a proper position. The measured results show that the proposed antenna has a broad overlapped 3-dB axial ratio (AR) bandwidth and −10 dB impedance bandwidth of 71% (2.19-4.6 GHz).

show abstract

Circularly Polarized Monopole L-Shaped Slot Antenna With Enhanced Axial-Ratio Bandwidth

Cited by 30 publications

References 21 publications

Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications

Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications

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

A Simple v-Shaped Slot Antenna With Broadband Circular Polarization

Contact Info

Product

Resources

About