A Printed Elliptical Monopole Antenna With Modified Feeding Structure for Bandwidth Enhancement

Liu, Jianjun; Zhong, Shun‐Shi; Esselle, Karu P.

doi:10.1109/tap.2010.2096398

Cited by 106 publications

(77 citation statements)

References 9 publications

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“…A microstrip-fed antenna with an L-shaped ramification on the radiation patch has been presented in [11] for Bluetooth and UWB systems. In our lab, a printed elliptical antenna with a tapered and modified feed was designed to support a number of wireless communication frequency bands [12].…”

Section: Introductionmentioning

confidence: 99%

Study of an Extremely Wideband Monopole Antenna With Triple Band-Notched Charactersistics

Liu¹,

Hay²,

Zhong³

2012

PIER

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Abstract-Three notched bands are generated, at selected frequencies, in an extremely wideband base antenna to support multiple communication systems while avoiding inference from other existing narrowband systems. The design of a fully printed extremely wideband antenna and creating triple band-notched functions are addressed in this paper. Measurements demonstrate that the proposed printed base antenna has an extremely wide 2 : 1 VSWR bandwidth from 0.72 GHz, to 25 GHz with a ratio bandwidth of 34 : 1. The antenna has a simple structure and can be fabricated at low cost for multi-band and wideband wireless communication devices. Besides, this paper presents a technique to form three notched bands within the operating frequency range of the base antenna. By introducing a half-wavelength U-shaped defected ground structure (DGS) and a pair of quarter-wavelength open arc-shaped slots to the radiating patch, three notched bands are created to prevent interference from WLAN (2.4-2.484 GHz and 5.15-5.85 GHz) systems and downlinks of X-band satellite communication (7.25-7.75 GHz) systems.

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Section: Introductionmentioning

confidence: 99%

Study of an Extremely Wideband Monopole Antenna With Triple Band-Notched Charactersistics

Liu¹,

Hay²,

Zhong³

2012

PIER

Self Cite

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“…An eye shaped antenna is proposed in [3] to achieve a bandwidth of 1.2-4.5 GHz but its gain is reduced significantly from approximately 2 dBi to 0 dBi within the operational band. Similarly, a large gain fluctuation of 6 dBi approximately is observed in printed elliptical monopole antenna with modified feeding structure for bandwidth enhancement [4].…”

Section: Introductionmentioning

confidence: 76%

“…Thus proposed ECSA3 shows relatively high and stable gain with less gain variation as compared to antennas stated in [11,12]. Though elliptical monopole antenna with modified feed [4] of relatively larger size 110 × 124 mm 2 has a wide impedance bandwidth but it has a large gain variation of approximately 6.5 dBi over its entire antenna bandwidth (1.0-20.0 GHz). The gain stability of the proposed ECSA3 also indicates the consistency of its radiation patterns over the entire antenna bandwidth.…”

Section: Gainmentioning

confidence: 88%

Printed Egg Curved Slot Antennas for Wideband Applications

Verma¹,

Kumar²

2014

PIER B

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Abstract-This paper presents a novel design of an egg curve based wide-slot antenna for various wideband applications. The proposed printed antenna consists of an egg curved slot with a similar tuning stub. The egg curve is obtained by introducing an egg shaping parameter into standard elliptic curve equation. The effect on the impedance bandwidth through the variations in antenna design parameters has been investigated and analysed in detail. To validate the theoretical design, various egg curved slot antennas were designed, fabricated and measured. Good agreement between the simulated results and the measured ones is observed. An empirical formula is also proposed to approximately determine the frequency corresponding to the lower edge of −10 dB operating bandwidth. The results demonstrate that the proposed egg curved slot antenna (ECSA) can obtain a measured bandwidth (BW) of 164.46% (1.95-20.0 GHz) for |S 11 | ≤ −10 dB. A stable realised gain of about 4.1-5.1 dBi with consistent radiation patterns are measured over more than the entire ultrawideband (UWB) bandwidth (3.1-10.6 GHz) which makes it a suitable candidate for wideband and UWB wireless system applications.

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“…It provides an impedance bandwidth ratio of larger than 4.7:1 (2.55 ~12 GHz). Various printed monopole antennas with trapeziform ground [32][33][34][35][36] .…”

Section: Figure 12mentioning

confidence: 99%

“…In order to match 50Ω SMA or N-type connectors, a linearly tapered central strip line is used as an impedance transformer, and an impedance bandwidth ratio of 10.7:1 (0.76~11 GHz) is obtained. Moreover, various printed monopoles and feed structures are also studied to enhance the bandwidth further [33][34][35][36].…”

Section: Figure 12mentioning

confidence: 99%

Ultra-Wideband Antenna and Design

Liang¹

2012

Ultra Wideband - Current Status and Future Trends

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A Printed Elliptical Monopole Antenna With Modified Feeding Structure for Bandwidth Enhancement

Cited by 106 publications

References 9 publications

Study of an Extremely Wideband Monopole Antenna With Triple Band-Notched Charactersistics

Study of an Extremely Wideband Monopole Antenna With Triple Band-Notched Charactersistics

Printed Egg Curved Slot Antennas for Wideband Applications

Ultra-Wideband Antenna and Design

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