scholarly journals Metamaterial Inspired Electrically Small Multiband Monopole Antenna Using Single DNG MTM and Ring Resonators

2021 ◽  
Author(s):  
Shiney Thankachan ◽  
Binu Paul
Keyword(s):  
Detailed Analysis ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Monopole Antenna ◽  
Ring Resonators ◽  
Area Network ◽  
Double Negative ◽  
Fractional Bandwidth ◽  
Triple Band

Abstract This paper proposes a new metamaterial inspired electrically small multi-band monopole antenna. The proposed antenna is capable of operating at DCS 1800 in the lower band. At the same time, in the higher band, it covers two wireless local area network (WLAN) bands at 2.4 and 5.2 GHz. This paper describes the design and detailed analysis of an electrically small (ka = 0.64 < 1) antenna with a -10dB fractional bandwidth of 2.01%, 1.64% and 2.71% for triple-band operations with centre frequencies 1.80, 2.45 and 5.17 GHz. The compactness is achieved by the application of double negative metamaterial on a monopole antenna operating at 9 GHz. The proposed antenna has an overall compact electrical size 0.14 λ0 × 0.14λ0 × 0.01 λ0 at 1.8 GHz and physical dimensions 24 × 24 × 1.6 mm3 including the ground. In this proposed ESA a second DNG structure is also incorporated to enhance its gain. This enables reliable operations at DCS 1800 and WLAN frequencies 2.4 and 5.2 GHz.

scholarly journals A Rectangular Ring, Open-Ended Monopole Antenna with Two Symmetric Strips for WLAN and WiMAX Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Joong-Han Yoon ◽  
Young-Chul Rhee ◽  
Woo-Su Kim
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Bandwidth Requirement ◽  
Ring Open ◽  
Peak Gain ◽  
Triple Band

A triple-band rectangular ring, open-ended monopole antenna with symmetricLstrips for wireless local area network (WLAN)/Worldwide Interoperability of Microwave Access (WiMAX) applications is proposed. The proposed antenna consists of two symmetric folded arms andLstrips. Based on the concept, a prototype of the proposed triple antenna has been designed, fabricated, and tested. The numerical and experimental results demonstrated that the proposed antenna satisfied the −10 dB impedance bandwidth requirement while simultaneously covering the WLAN and WiMAX bands. Furthermore, this paper presented and discussed the 2D radiation patterns and 3D gains according to the results of the experiment. The proposed antenna’s peak gain varied between 2.17 and 4.93 dBi, and its average gain varied between −2.97 and −0.53 dBi.

Design of a Quad-Band Monopole Antenna with Independent Frequency Control

2019 ◽  
Vol 28 (06) ◽  
pp. 1950101
Author(s):  
Wang Ren ◽  
Peng-Hong Wang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Frequency Control ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Monopole Antenna ◽  
Ring Resonators ◽  
Area Network ◽  
Global Positioning

A coplanar waveguide (CPW)-fed I-shaped monopole antenna with independent frequency control characteristic is presented for simultaneously satisfying the global positioning system (GPS), wireless local area network (WLAN), and worldwide interoperability for microwave access (WiMAX) applications. It is printed on an FR4 substrate with a single-layered metallic structure and the overall dimensions are [Formula: see text][Formula: see text]mm3. The proposed antenna consists of an I-shaped monopole, a pair of split-ring resonators (SRRs), and a coplanar ground plane. The unique advantage of this study is that the four frequency bands are generated individually by different radiating elements. That is, each of them can be controlled independently with little interference from others, which brings added convenience to the antenna design, optimization and debugging processes. Simulated and measured results both demonstrate that it can cover the 1.575[Formula: see text]GHz GPS (1.57–1.59[Formula: see text]GHz); 2.4/5.2/5.8[Formula: see text]GHz WLAN (2.4–2.485, 5.15–5.35 and 5.725–5.825[Formula: see text]GHz) and 3.5/5.5[Formula: see text]GHz WiMAX (3.40–3.60 and 5.25–5.85[Formula: see text]GHz) applications with satisfactory radiation patterns and acceptable gains.

scholarly journals A Miniaturized Triple Band Monopole Antenna for WLAN and WiMAX Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Yingsong Li ◽  
Wenhua Yu
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Radiation Patterns ◽  
Resonance Frequencies ◽  
Meander Line ◽  
Triple Band

A miniaturized triple band monopole antenna with a small size is proposed and its performance is investigated both numerically and experimentally for worldwide interoperability for microwave access (WiMAX) and wireless local area network (WLAN) applications. The three resonance frequencies are realized by using a toothbrush-shaped patch (TSP), a meander line (ML), and an inverted U-shaped patch (IUSP). The center frequencies of the triple bands can be controlled by adjusting the dimensions of the TSP, ML, and IUSP. Simulated and measured results are presented to demonstrate that the proposed triband monopole antenna with a good impedance bandwidth and omnidirectional radiation patterns is well suitable for WLAN and WiMAX communication applications.

scholarly journals Planar EBG Loaded UWB Monopole Antenna with Triple Notch Characteristics

2021 ◽  
Vol 11 (4) ◽  
pp. 294-304
Author(s):  
Vamshi Kollipara ◽  
Samineni Peddakrishna ◽  
Jayendra Kumar
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Coupling Effect ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Area Network ◽  
Distribution Analysis ◽  
Archimedean Spiral ◽  
Feed Line ◽  
Triple Band

A triple band-notched ultra-wideband (UWB) monopole antenna using a planar electromagnetic bandgap (EBG) design is proposed. The EBG unit cell composed by an Archimedean spiral and inter-digital capacitance demonstrates the notch frequencies. The antenna with EBG cells near the feed line occupies only 30 × 36 mm2 with triple band-rejection characteristics. The three notched bands at 4.2 GHz, 5.2 GHz, and 9.1 GHz can be used in C-band satellite downlink, wireless local area network (WLAN), and X-band radio location for naval radar or military required applications. In addition, the proposed design is flexible to tune different notched bands by altering the EBG dimensions. The parametric analysis is studied in details after placing the EBG unit cells near the feed line to show the coupling effect. The input impedance and surface current distribution analysis are also analyzed to understand the effect of EBG at notch frequencies. The proposed design prototype is fabricated and characterized. A fairly considerable agreement is observed between simulated and measured results.

Super wideband printed monopole antenna for ultra wideband applications

2015 ◽  
Vol 9 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Sandeep Kumar Palaniswamy ◽  
Malathi Kanagasabai ◽  
Shrivastav Arun Kumar ◽  
M. Gulam Nabi Alsath ◽  
Sangeetha Velan ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Wide Band ◽  
Local Area ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Compact Size

This paper presents the design, testing, and analysis of a clover structured monopole antenna for super wideband applications. The proposed antenna has a wide impedance bandwidth (−10 dB bandwidth) from 1.9 GHz to frequency over 30 GHz. The clover shaped antenna with a compact size of 50 mm × 45 mm is designed and fabricated on an FR4 substrate with a thickness of 1.6 mm. Parametric study has been performed by varying the parameters of the clover to obtain an optimum wide band characteristics. Furthermore, the prototype introduces a method of achieving super wide bandwidth by deploying fusion of elliptical patch geometries (clover shaped) with a semi elliptical ground plane, loaded with a V-cut at the ground. The proposed antenna has a 14 dB bandwidth from 5.9 to 13.1 GHz, which is suitable for ultra wideband (UWB) outdoor propagation. The prototype is experimentally validated for frequencies within and greater than UWB. Transfer function, impulse response, and group delay has been plotted in order to address the time domain characteristics of the proposed antenna with fidelity factor values. The possible applications cover wireless local area network, C-band, Ku-band, K-band operations, Worldwide Interoperability for Microwave Access, and Wireless USB.

scholarly journals A CPW-Fed Rectangular Ring Monopole Antenna for WLAN Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sangjin Jo ◽  
Hyunjin Choi ◽  
Beomsoo Shin ◽  
Sangyeol Oh ◽  
Jaehoon Lee
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Local Area ◽  
Monopole Antenna ◽  
Dual Band ◽  
Area Network ◽  
Feed Line ◽  
Compact Size

We present a simple coplanar waveguide- (CPW-) fed rectangular ring monopole antenna designed for dual-band wireless local area network (WLAN) applications. The antenna is based on a simple structure composed of a CPW feed line and a rectangular ring. Dual-band WLAN operation can be achieved by controlling the distance between the rectangular ring and the ground plane of the CPW feed line, as well as the horizontal vertical lengths of the rectangular ring. Simulated and measured data show that the antenna has a compact size of21.4×59.4 mm2, an impedance bandwidths of 2.21–2.70 GHz and 5.04–6.03 GHz, and a reflection coefficient of less than −10 dB. The antenna also exhibits an almost omnidirectional radiation pattern. This simple compact antenna with favorable frequency characteristics therefore is attractive for applications in dual-band WLAN.

Planar compact dual-band monopole antenna with circular polarization for WLAN applications

2014 ◽  
Vol 8 (1) ◽  
pp. 81-87 ◽  
Author(s):  
Jui-Han Lu ◽  
Hao-Shiang Huang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Axial Ratio ◽  
Local Area ◽  
Monopole Antenna ◽  
Dual Band ◽  
Area Network ◽  
Ieee 802.11A ◽  
Resonant Modes

A planar circularly polarized (CP) monopole antenna (MA) with dual-band operation for the IEEE 802.11a/b/g wireless local area network (WLAN) is proposed. By introducing dual strip-sleeves shorted at the ground plane, the excitation of dual-resonant modes can resemble the 2.4/5.2 GHz bands required for WLAN operations. The obtained impedance bandwidths (RL ≧10 dB) across the operating bands approach 260/988 MHz and the 3 dB axial-ratio bandwidth of about 103/710 MHz for 2.4/5.2 GHz bands, respectively. The model proposed in this study reflects more advantages in physical implementation as its overall volume is only 40 × 40 × 0.8 mm3, 22% smaller than other conventional CP MAs. The measured peak gain and radiation efficiency are about 4.1/3.3 dBic and 94/84%, respectively, and demonstrate nearly bidirectional patterns in the XZ- and YZ-planes.

Study on miniaturization of planar monopole antenna with parabolic edge shape with a notch slot

2016 ◽  
Vol 9 (3) ◽  
pp. 607-611 ◽  
Author(s):  
Tae-Soon Chang ◽  
Sang-Won Kang
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Wide Band ◽  
Local Area ◽  
Dielectric Substrate ◽  
Dipole Antenna ◽  
Monopole Antenna ◽  
Area Network ◽  
Miniaturized Antenna ◽  
Planar Monopole Antenna

This paper proposes a planar monopole antenna with a parabolic edge shape. This antenna, which has notch characteristics in the wireless local area network (WLAN) band, can be miniaturized. To obtain the notch characteristics in the WLAN band, a slot with a parabolic edge shape identical to that of the monopole structure was implemented. Because the planar monopole antenna with a parabolic edge shape possesses characteristics similar to those in self-complementary structure conditions, it can be miniaturized by reducing the antenna components at the same proportion. For the antenna fabrication, an FR4 dielectric substrate with a dielectric constant of 4.7 was used. The size of the miniaturized antenna that satisfies the ultra-wide band requirement was 15.6 × 18.6 mm2, and the 10-dB band was 3.013–12.515 GHz. At each frequency, the radiation pattern was similar to that of a dipole antenna.

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