Broadband, robust, low profile monopole incorporating top loading, dielectric loading, and a distributed capacitive feed mechanism

McLean, James; Foltz, Heinrich; Crook, G. E.

doi:10.1109/aps.1999.788242

Cited by 16 publications

(9 citation statements)

References 5 publications

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“…A monopole antenna is very simple and efficient radiating element [1]. The simple whip and monopole antenna attractive for use in mobile handsets and repeater applications because of omnidirectional characteristics, simple structure, and the inherent 2:1 size reduction over equivalent dipole designs [2]. However, these antennas suffer from the problem of a limited bandwidth and a distortion radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

A low profile post‐type monopole antenna with a ring and four small posts

Jang

Go²,

Lee³

2010

Micro & Optical Tech Letters

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This article presents a low profile wideband top-loading monopole antenna with a ring and four small post-shape plates. And an inserted ring-shaped plate makes a gap from the post element and leads to enhance wider and higher gain than the conventional top-loading monopole. Four small post-shape plates also lead to obtain higher antenna gain, uniformity radiation patterns. Moreover, top-load also leads to reduce the height of antenna (a small antenna size). The experimental impedance bandwidth is approximately 1.55-2.73 GHz (% bandwidth is 55.14%) below with VSWR 2.0. This antenna also presents a wideband, a uniformity radiation patterns characteristic, respectively. The proposed antenna can be applied PCS, DCS, IMT-2000, WLL.

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Section: Introductionmentioning

confidence: 99%

A low profile post‐type monopole antenna with a ring and four small posts

Jang

Go²,

Lee³

2010

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…A monopole antenna is very simple and efficient radiating element [1]. The simple whip and monopole antennas are attractive for use in mobile handsets and repeater applications because of their omnidirectional characteristics, simple structure, and the inherent 2:1 size reduction over equivalent dipole designs [2]. However, these antennas suffer from the problem of a limited bandwidth and distortion-radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…In the design of ultra-low-voltage high-performance transformerfeedback voltage-controlled oscillators (VCOs) [1] and low-noise amplifiers (LNAs) [2], the power gain G A (or noise figure NF) performance of the transformers used are crucial for the phase noise performance of the VCOs and the NF performance of the LNAs. However, the G A (or NF) performance of monolithic RF transformers fabricated on normal silicon substrates (ϳ300 -500 …”

Section: Introductionmentioning

confidence: 99%

A low profile wideband top-loading monopole antenna with a ring-shaped plate

Lee

Go²,

Jang³

2006

Microw. Opt. Technol. Lett.

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This paper presents a low profile wideband top‐loading monopole antenna with ring‐shaped plate. The ring‐shaped plate is used to enhance the impedance matching and to increase the antenna gain, due to the low radiation resistance in the usable band. That is, an additional ring‐shaped plate allows us to obtain multiband and omnidirectional patterns. Moreover, top‐loading also allows us to reduce the height of the antenna for a small‐size antenna. We experimentally 53.3% (1.6200–2.6867 GHz) bandwidths with VSWR ≤ 2.0. This antenna also obtains a wideband and high‐gain characteristics. The proposed antenna can be applied to PCS, DCS, IMT‐2000, and WLL. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1458–1460, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21731

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“…A monopole antenna is a very simple and efficient radiating element [1]. The simple whip and monopole antennas are attractive for use in mobile handsets and repeater applications because of their omnidirectional characteristics, simple structure, and inherent 2:1 size reduction over equivalent dipole designs [2]. However, these antennas suffer from the problem of a limited bandwidth and distorted radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome this problem, patch antennas with some novel cavity ground structures, such as a circular [1] or a square [2] cavity ground, have been demonstrated. However, such patch antennas as presented in these studies have a narrow bandwidth, which limits their practical applications.…”

Section: Introductionmentioning

confidence: 99%

A low‐profile broadband 16‐mm‐diameter post‐type monopole antenna ceiling‐mounted in a building

Jang¹,

Go²

2004

Micro & Optical Tech Letters

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This paper experimentally presents a low‐profile broadband post‐type monopole antenna. The characteristics of the antenna are highly dependent on the design parameters (Rm, hm, hfl, and Rg). Instead of a wire monopole, the proposed antenna is made of a 16‐mm‐diameter aluminum post that is ceiling‐mounted in a building. This is due to the low‐radiation resistance in the usable band. The post‐type element is used to enhance the impedance matching. The experimental impedance bandwidth obtained is approximately 67.9% (1.9824–3.5534 GHz) for a VSWR of less than 2.0. The impedance bandwidth covers multiband operations for mobile and satellite communication. We also present the measured radiation patterns and gain characteristics of the proposed antenna. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 395–397, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20150

show abstract

Broadband, robust, low profile monopole incorporating top loading, dielectric loading, and a distributed capacitive feed mechanism

Cited by 16 publications

References 5 publications

A low profile post‐type monopole antenna with a ring and four small posts

A low profile post‐type monopole antenna with a ring and four small posts

A low profile wideband top-loading monopole antenna with a ring-shaped plate

A low‐profile broadband 16‐mm‐diameter post‐type monopole antenna ceiling‐mounted in a building

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