Quick Estimation of Rectangular Patch Antenna Dimensions Based on Equivalent Design Concept

Mathur, Dhirendra; Bhatnagar, S. K.; Sahula, Vineet

doi:10.1109/lawp.2014.2334362

Cited by 23 publications

(14 citation statements)

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“…To derive meaningful conclusions the data was partitioned into groups on the basis of constant H value. It has been shown earlier that for rectangular patch MSA, the extension in physical length of the patch is directly proportional to H and also to the effective length of the patch (Bhatnagar's Postulate) [4]. This theory has been extended to equilateral triangular MSA.…”

Section: Methodsmentioning

confidence: 93%

New Model for Effect of Fringing Fields on Radius of Circular Microstrip Antenna

Bhatnagar¹

2021

SKIT Research Journal

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This paper presents a model for effect of fringing fields on the radius of Circular Micro Strip Antenna (CMSA). The model is straight forward, simple and accurate for determining the physical radius of the circular patch. It is proposed that the extension in physical radius of CMSA is directly proportional to the physical radius itself and also to the normalized thickness of the dielectric substrate. The new model gives good results without any iteration. Novel results are that for all CMSA (1) the ratio of extension in physical radius to physical radius is equal to H (2) ratio of fringing field area to physical area of the patch is 2H (3) ratio of extension in physical radius to the height of the substrate is a constant Anm/2π. Here H is the normalized substrate thickness. Normalization is done with respect to guide wavelength. Anm is the mth zero of the derivative of the Bessel function of the order n. Large number of CMSA have been designed and simulated to validate the new thinking. Some typical data and simulation results have been incorporated in this paper.

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Section: Methodsmentioning

confidence: 93%

New Model for Effect of Fringing Fields on Radius of Circular Microstrip Antenna

Bhatnagar¹

2021

SKIT Research Journal

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“…The feed line of the antenna is a CPW. The initial dimensions for a rectangular antenna were calculated through the following relations [31]: This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication.…”

Section: A Evolutive Design Of the Cpw Antennamentioning

confidence: 99%

Multi-Band and High Gain Antenna Using AMC Ground Characterized With Four Zero-Phases of Reflection Coefficient

Gong

Yang

et al. 2020

IEEE Access

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In this paper, a multi-band AMC-backed antenna system characterized with high gain and lowprofile is proposed. It is constructed by placing a quad-band coplanar-waveguide (CPW) antenna over an AMC with four zero-phases in the reflection coefficient. The CPW antenna consists of an ornamental-pillarshaped patch with the specially designed parasitic elements, and a defected ground structure (DGS), for the application in the frequency bands of 2.45, 3.5, 4.6 and 5.8 GHz. To improve the CPW antenna's radiation performance, an artificial magnetic conductor (AMC) ground with four zero-phases of the reflection coefficient is designed and employed as the reflector. The AMC unit cell is composed of four metallic nested rings (FMNR), whose innermost ring is connected in series to four lumped capacitors. It is observed that the proposed quad-band AMC ground can not only increase the gains of the multi-band antenna greatly but also combine the two intermediate frequency bands of the antenna into a broadband one. The prototypes of the antenna and the AMC array with 5 × 5 unit cells were fabricated and measured. It is found that in comparison to the antenna without AMC, the AMC-backed antenna obtains a gain enhancement by amounts of 4.93, 5.92, 5.54 and 4.95 dB at the frequencies of 2.45, 3.5, 4.6 and 5.8 GHz. The 10-dB impedance bandwidths of the AMC-backed antenna include three bands of 2.13-2.87, 3.22-4.75, and 5.54-5.86 GHz, with the corresponding relative bandwidths of 14.8%, 38.4%, and 5.3%. The proposed antenna can be potentially applied to the applications in WLAN, WiMAX, and 5G mobile communication systems. INDEX TERMS multi-band antenna, quad-band artificial magnetic conductor (AMC), coplanar-waveguide (CPW), gain enhancement.

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“…Planar antennas for UWB applications have also been reported [11][12][13][14][15]. The antenna design may be transformed into another dielectric material by using the transformation formulae for antenna dimensions and feed line dimension [16,17]. This paper presents a coplanar monopole antenna structure for the band from 900 MHz-9.9 GHz with band rejection from 3.1 GHz-5.6 GHz.…”

Section: Rf Energy Harvesting and Its Demands On Antenna Specificationsmentioning

confidence: 99%

A Compact Coplanar Waveguide Fed Wideband Monopole Antenna for Rf Energy Harvesting Applications

Mathur¹,

Agrawal²,

Singh³

et al. 2018

PIER M

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Abstract-For energy harvesting applications a new design of a coplanar waveguide (CPW) fed monopole antenna is presented. It covers almost all useful band ranges from 900 MHz-9.9 GHz (Radio, GSM, ISM, UWB bands). It also provides band reject characteristics for the range 3.1 GHz-5.6 GHz (HIPERLAN, C-Band, and W-LAN) to avoid interference from this range. The new design is based on the modification of coplanar waveguide (CPW) structure and optimizing the gap between patch and CPW ground for covering the ultra wideband (UWB) range and other useful ranges (Radio, GSM and ISM). Bandwidth enhancement and impedance matching for UWB range have been obtained by chamfering the corners, cutting two slots in CPW ground and dual stubs. The new design incorporates a parasitic patch above the antenna patch for tunning the desired band rejection. The entire design has been optimized at various stages during its evolution. The structure is compact in size 50×40×1.6 mm 3 . It may also be used for mobile, military and satellite applications.

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Quick Estimation of Rectangular Patch Antenna Dimensions Based on Equivalent Design Concept

Cited by 23 publications

References 0 publications

New Model for Effect of Fringing Fields on Radius of Circular Microstrip Antenna

New Model for Effect of Fringing Fields on Radius of Circular Microstrip Antenna

Multi-Band and High Gain Antenna Using AMC Ground Characterized With Four Zero-Phases of Reflection Coefficient

A Compact Coplanar Waveguide Fed Wideband Monopole Antenna for Rf Energy Harvesting Applications

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