Experimental study of a printed ultra‐wideband modified circular monopole antenna

Kundu, Surajit

doi:10.1002/mop.31736

Cited by 37 publications

(17 citation statements)

References 19 publications

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“…Fractal geometries are also commonly used to achieve UWB characteristics with lower cutoff frequency . In the published literature, several UWB antenna designs with notch band characteristics in allocated frequency bands have been reported …”

Section: Introductionmentioning

confidence: 99%

A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection

Garg

Nair

Singhal

et al. 2020

Micro & Optical Tech Letters

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A new type of fractal-shaped microstrip patch antenna for ultra-wideband (UWB) applications and with sufficient rejection in the WLAN band is presented. The radiating patch is placed on a 1.6 mm thick low-cost FR-4 epoxy substrate and is fed using a symmetric coplanar waveguide. The size of the proposed antenna in terms of wavelength is 0.189λ 0 × 0.197λ 0 . A sectorial-circular slot in the patch is used to create WLAN band notch. An impedance bandwidth of 11.76 GHz (from 2.19 to 13.95 GHz) is achieved, along with achieving WLAN band rejection from 4.67 to 6.21 GHz. Nearly omnidirectional radiation pattern with the maximum gain of 5 dB in the passband is achieved. In the rejection band, the gain drops to −3 dB. The simulated results are verified against experimental data and a good agreement between the two sets of data is seen. The proposed antenna covers both the unlicensed 2.4 GHz band and the UWB. K E Y W O R D S coplanar waveguide (CPW) feed, fractal design, ultra-wideband (UWB), WLAN band notch

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Section: Introductionmentioning

confidence: 99%

A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection

Garg

Nair

Singhal

et al. 2020

Micro & Optical Tech Letters

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“…The optimal dimensions are obtained by parametric sweep. The ground plane dimension is between 47 mm [32] and 30 mm [35]. A larger ground plane will increase the overall CR antenna size, and a smaller ground may not provide sufficient ground to place NB antennas.…”

Section: Uwb Sensing Antennamentioning

confidence: 99%

“…The initial dimensions are fixed using Eqs. (2)-(7) [34,35]. The height of the monopole antenna (l) is λ L /4 [36].…”

Section: Uwb Sensing Antennamentioning

confidence: 99%

A Hybrid Multi-Port Antenna System for Cognitive Radio

Parida¹,

Mishra²,

Sahoo³

et al. 2020

PIER C

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This paper proposes a hybrid, compact, low profile, and multi-port antenna system for Cognitive Radio (CR). This system consists of a CPW-fed sensing UWB monopole (2-11 GHz) and three NB antennas, out of which one is standalone (7.355 GHz); one is dual-band (5.834 GHz and 8.786 GHz); and the other is reconfigurable (3.863 GHz, 4.664 GHz, 5.2 GHz, and 6.13 GHz) using switching mechanism. This antenna system exhibits less than −15 dB isolation over the operating band. The system is simulated using CST Microwave Studio, and a prototype is fabricated to verify the results. The simulated results are in good agreement with measured ones. The proposed antenna is suitable to operate in C-band, ISM/WLAN/Military application, mid-band 5G, maritime radio navigation, X-band satellite communication, and public safety wireless communication.

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“…Conventional ultra‐wideband (UWB) antennas usually offer low gain responses 1‐3 . Several strategies were adopted to enhance the bandwidth of conventional printed antennas such as “loading an asymmetrical meander lines split ring resonator (SRR)”, 4 “inclusion of dual narrow vertical stubs to separate square radiators”, 5 “T shaped radiator formation”, 6 “embedding meander‐line slots on patch and adding four co‐directional SRR pairs at the other side of patch”, 7 “simple geometrical approximation of patch and co‐planar ground”, 8 “metamaterial transmission‐line based antenna design”, 9 etc. To realize high gain UWB antennas, integration of frequency selective surface (FSS) 10‐19 can be preferred.…”

Section: Introductionmentioning

confidence: 99%

High gain compact ultra‐wideband “antenna‐frequency selective surface” and its performance evaluation in proximity of soil surface

Kundu

2020

Micro & Optical Tech Letters

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High gain compact ultra‐wideband (UWB) antenna is essential for various UWB applications including impulse radar. U‐shaped UWB antenna is developed from the usual square shaped patch and cascaded with simply designed aperture like uniplanar frequency selective surface (FSS) that has 4 × 4 array of square slots inside metal patch in its unit cell. Compact unit cell of dimension 11 × 11 mm2 realizes bandwidth from 0.001 to 15.8 GHz. The compact UWB “antenna‐FSS” provides gain augmentation of 2.5 to 5.2 dBi in the 2.94 to 15.26 GHz (135%) band with highest gain augmentation of 5.2 dBi at 8.94 GHz. The “antenna‐FSS” offers stable omnidirectional radiation patterns and measured radiation efficiency variation from 76% to 84% in its bandwidth. Transient and frequency responses of this unique compact high gain UWB “antenna‐FSS” structure is also analyzed in environs of sandy soil. Linear transfer function (S21) and non‐varying group delay responses in the unaffected impedance band of “antenna‐FSS” ensure its non‐dispersive nature while used for ground penetrating radar application.

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Experimental study of a printed ultra‐wideband modified circular monopole antenna

Cited by 37 publications

References 19 publications

A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection

A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection

A Hybrid Multi-Port Antenna System for Cognitive Radio

High gain compact ultra‐wideband “antenna‐frequency selective surface” and its performance evaluation in proximity of soil surface

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