A polarization and band reconfigurable cross-slot antenna for multiband application

Saraswat, Kapil; Harish, A. R.

doi:10.1017/s1759078719000758

Cited by 2 publications

(5 citation statements)

References 14 publications

(26 reference statements)

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“…The antennas reported in [5]- [7] use multilayered structures, which are voluminous and lead to relatively complex geometries to develop and integrate with small wireless devices compared to the proposed work, which is planar, single-layer, and easily integrable with modern-day devices as it requires smaller overall space. The reconfigurable antennas reported in [8] and [26] are planar, single-layered structures and have simple geometry, but they are relatively larger in physical size, 52 mm × 35 mm, and 50 mm × 50 mm, respectively, have low peak gain, and have a low operational 3 dB AR bandwidth of 130 MHz and 160 MHz, respectively, as compared to proposed reconfigurable ITSF antenna. The proposed polarization reconfigurable ITSF antenna designed using BACS with PIN diodes is planar, a single-layered structure with a moderate physical size of 42 mm × 32 mm (1.57λ g × 1.25λ g ) and a peak gain of 5.71 dBi, low fabrication complexity, easily integrable with modern-day devices, and offers the highest 3 dB AR bandwidth of 1.18 GHz in comparison to all the previous reported works.…”

Section: Antenna's Measured Results and Discussionmentioning

confidence: 99%

“…Although, the antenna has a good gain of 10.6 dBi, it has a relatively low CP bandwidth of 120 MHz and a substantially larger antenna size of 55 mm × 55 mm × 5 mm as compared to the proposed design in this paper. The polarization reconfigurable antennas using cross slots were presented in [8]- [9]. To switch between LP and CP, PIN diodes are mounted on the antenna radiator's cross-slot.…”

Section: Introductionmentioning

confidence: 99%

“…To switch between LP and CP, PIN diodes are mounted on the antenna radiator's cross-slot. The antenna in [8] used four PIN diodes and has an antenna size of 52 mm × 35 mm, whereas in [9], eight PIN diodes were used as switching elements with a low gain of 4 dBi at the resonant frequency of 2.45 GHz and a small 3 dB AR bandwidth of 30 MHz.…”

Section: Introductionmentioning

confidence: 99%

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A Fractal Monopole Antenna With Dual Polarization Reconfigurable Characteristics for X-Band Applications

Shankar,

Upadhyay

2023

IEEE Access

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A monopole antenna with dual (linear/circular) polarization reconfigurability for X-band applications is presented in this paper. The antenna consists of a bent arm cross-shaped (BACS) slot created on the inverted triangular staircase fractal (ITSF) shaped patch. Two PIN diodes are embedded on the opposite side of the horizontal arm of the BACS slot for electronic switching between two different polarization states. By varying the biasing conditions of PIN diodes, the measured antenna's 3 dB axial ratio (AR) operational band for left-hand circular polarization (LHCP) is observed from 9.88 GHz to 11.06 GHz, whereas linear polarization (LP) is achieved from 7.95 GHz to 12.64 GHz. The measured peak gain of the antenna is 5.71 dBi, whereas the average peak gain is obtained as 4.97 dBi. The size of the antenna is 1.57λ g × 1.25λ g where, λ g is guided wavelength at the lowest cutoff frequency, 7.95 GHz. The proposed monopole antenna's progressive design steps, an equivalent lumped circuit model analysis, and a comparative study between electromagnetic (EM) simulation and measured results are carried out to validate the antenna's performance.INDEX TERMS Bent arm cross shaped slot, Inverted triangular staircase fractal, PIN diode, Polarization reconfigurable antenna, X-band.

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Section: Antenna's Measured Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Fractal Monopole Antenna With Dual Polarization Reconfigurable Characteristics for X-Band Applications

Shankar,

Upadhyay

2023

IEEE Access

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“…1,2 It is evident that the polarization switchable antennas are immune to multipath fading effect for their polarization diversity property. 2 In addition, this kind of antennas are now play vital role for microwave tracking, sensing, detection the arrival of microwave signal. [3][4][5] The polarization switchable antennas are also a great candidate for the fifth generation (5G) mobile communication system.…”

Section: Introductionmentioning

confidence: 99%

“…Now a days, for cognitive radio system, radar communication and active antenna systems, the polarization switchable/reconfigurable antennas have drawn a remarkable attention 1,2 . It is evident that the polarization switchable antennas are immune to multipath fading effect for their polarization diversity property 2 . In addition, this kind of antennas are now play vital role for microwave tracking, sensing, detection the arrival of microwave signal 3–5 .…”

Section: Introductionmentioning

confidence: 99%

A gain enhanced linear polarization switchable array antenna with switching diodes

Hossain

Murshed

Rahman

et al. 2022

Int J RF Mic Comp-Aid Eng

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In this article, an array antenna possessing linear polarization switchable ability with enhanced gain is proposed by employing 4‐patch elements in square shape. The 4‐elements were arranged on the upper plane of the antenna where edge to edge distances were set to be 0.8λ of its operating frequency. The radio frequency signal was fed to energize the patch elements by means of a feed circuit which was realized by the both‐sided microwave integrated circuit technology. In addition, polarization switching is done by simply utilizing diode at the corner of the elements as switching elements to perform beam tilting. The incorporation of extra Magic‐T circuit to feed dc bias signal to the diodes helps to achieve improved isolation between feeding signal and the isolation was found to be less than −25 dB. The array antenna was designed to operate at 10.2 GHz and the dimensions of the patch elements was chosen to be 9.4 × 9.4 mm2. A Teflon glass fiber of 0.8 mm was used as the dielectric substrate having dielectric constant 2.15 while simulation. Later the proposed antenna was fabricated performance is validated experimentally. The measured S11 was found to be less than −15 dB at operating frequency with a neat measured gain of 13.1 dBi, higher compared with 7.1 dBi gain of single antenna, with minimized sidelobe levels of less than −10 dB. The crosspolarization for the radiation pattern was found better than 20 dB which was an excellent result. The measured polarization angle was found to be −44.24° and +46.20° for negative and positive bias respectively at operating frequency with a neat efficiency of more than 80% in its operating bandwidth. The proposed array antenna is a suitable candidate for the application in polarimetric Radar, X‐band radar, and polarization diversity applications for being lightweight in structure which was made possible using this novel technology. The antenna simulation is done by the advanced design system and the optimized along with experimental data are discussed in this article.

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A polarization and band reconfigurable cross-slot antenna for multiband application

Cited by 2 publications

References 14 publications

A Fractal Monopole Antenna With Dual Polarization Reconfigurable Characteristics for X-Band Applications

A Fractal Monopole Antenna With Dual Polarization Reconfigurable Characteristics for X-Band Applications

A gain enhanced linear polarization switchable array antenna with switching diodes

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