Wide-band planar monopole antennas

Agrawall, N.P.; Kumar, Girish; Ray, K. P.

doi:10.1109/8.660976

Cited by 752 publications

(337 citation statements)

References 1 publication

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“…Several methods have been reported to make metamaterial switchable. A common solution for this is to tune the metamaterial performance by embedding diodes as controllable devices [6].…”

Section: Introductionmentioning

confidence: 99%

Wideband planar monopole antennas for GPS/WLAN/WiMAX/UWB and X‐band applications

Bozdağ

Kustepeli

2015

Micro & Optical Tech Letters

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In this article, two printed planar monopole antennas (PPMA) are presented. In the design of the first PPMA, the structure is divided into sections and they are optimized in the sense of bottom to up strategy. Tapered transitions and inset feed are employed to increase the bandwidth. The antenna operates between 2.37 GHz and 12 GHz with VSWR<2 and an average peak realized gain of 4.95 dB. Therefore, it is suitable for WLAN, WiMAX, UWB, and X-Band applications. The second PPMA is designed by implementing slots on the previous one to include GPS. The resulting antenna operates in the 1.38-1.60 GHz and 2.33-13.74 GHz bands with VSWR<2. As a result, it also includes GPS in addition to the previous bands. The peak realized gain in GPS is 0.47 dB at 1.575 GHz and the average peak realized gain is 4.41 dB for the 2.33-13.74 GHz band. The group delay performances of the proposed PPMAs are also examined and the maximum group delay deviations of the first and the second PPMAs are observed as 1 ns and 1.33 ns, respectively. V C 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:257-261, 2016; View this article online at wileyonlinelibrary.com.

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“…Several methods have been reported to make metamaterial switchable. A common solution for this is to tune the metamaterial performance by embedding diodes as controllable devices [6].…”

Section: Introductionmentioning

confidence: 99%

Wideband planar monopole antennas for GPS/WLAN/WiMAX/UWB and X‐band applications

Bozdağ

Kustepeli

2015

Micro & Optical Tech Letters

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“…Extensive effort has been made to modify its structure for increasing its bandwidth. For example, the monopole wire antenna is changed into a printed version [1][2][3][4], such as the circular disk monopole antenna having 10 : 1 bandwidth used in UWB systems [5]. The triangular monopole printed antenna is introduced in [6] and is shown to have a variable bandwidth as a function of its tapering angle.…”

Section: Introductionmentioning

confidence: 99%

Combline Loadings of Printed Triangular Monopole Antennas for the Realization of Multi-Band and Wideband Characteristics

Oraizi¹,

Rezaei²

2012

PIER B

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Abstract-In this paper, we use the concept of stub loadings of planar microstrip antennas to convert a single band antenna into a dual-band antenna used for WLAN. We load a planar triangular monopole (PTM) antenna by combline stubs attached to the edges of patch in order to obtain a second resonance frequency. The simple PTM antenna is first designed to produce the lower resonance frequency and the geometry of combline stubs is then optimally designed to generate the higher resonance frequency to realize a dual-band or a wideband antenna. Three prototype models of PTM antennas are designed, fabricated and measured. Their performances verify the concept of inductive loadings of planar antennas by combline stubs for the realization of dual-band and wideband performance for WLAN.

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“…The omnidirectional monopole antenna is modified by adding different shapes of reflectors such as planar reflector [7], corner reflectors [8,9], curved reflectors [10], ring reflectors [11], and others to obtain the unidirectional or bidirectional beams. To enhance the bandwidth, the linear monopole is extended to surface monopole [12] or three-dimensional (3D) monopole [13][14][15]. To realize the bidirectional pattern along the UWB frequency range, this paper presents the circular disc monopole (CDM) excited rectangular ring antenna.…”

Section: Introductionmentioning

confidence: 99%

A UWB Bidirectional Rectangular Ring Antenna Fed by CDM with a Rod and Ridges for Constant Beam Direction

Vongsack

Lamultree

Osklang

et al. 2012

International Journal of Microwave Science and Technology

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This paper presents an ultra-wideband (UWB) rectangular ring antenna excited by a circular disc monopole (CDM) with a conducting rod and two double ridges to radiate bidirectional pattern with constant beam direction along the entire UWB frequency range of 3.1-10.6 GHz. The conducting rod and double ridges at the upper wall of the ring are added to solve the tilted beam problem at the higher edge frequency whereas the double ridges at the lower wall are used to enhance the impedance bandwidth. The dimensions of the rectangular ring and the CDM are initially considered to achieve the bidirectional pattern with the suitable resonant frequencies and bandwidth. Then, the parameters of copper rod and two double ridges are determined by parametric study using CST Microwave Studio simulation software. The prototype antenna was fabricated, and the measured results show good agreement with the simulated ones. The obtained bandwidth of |S 11 | < −10 dB can cover the UWB frequency range as well as the bidirectional beam radiation with constant beam direction (θ = 0 • , 180 • and φ = 90 • ). The minimum and maximum measured gains are 3.1 dBi to 5.3 dBi, respectively. The proposed antenna possesses compact size with good radiation performance that can be a promising candidate for UWB applications.

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Wide-band planar monopole antennas

Cited by 752 publications

References 1 publication

Wideband planar monopole antennas for GPS/WLAN/WiMAX/UWB and X‐band applications

Wideband planar monopole antennas for GPS/WLAN/WiMAX/UWB and X‐band applications

Combline Loadings of Printed Triangular Monopole Antennas for the Realization of Multi-Band and Wideband Characteristics

A UWB Bidirectional Rectangular Ring Antenna Fed by CDM with a Rod and Ridges for Constant Beam Direction

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