Ultrawideband Suspended Plate Antenna With Enhanced Impedance and Radiation Performance

Low, Xue Ni; Chen, Zhi Ning; Toh, Wee Kian

doi:10.1109/tap.2008.927549

Cited by 33 publications

(24 citation statements)

References 29 publications

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“…The learning phase employs many (hard and soft) parameters; for instance, a cognitive radio should be capable to sense the spectrum over a wide range of frequencies, therefore the system need very wideband built in small antenna in order to sense the spectrum. Recently some designs have been reported to achieve wide band and multi-band antenna for Wireless LAN Applications [3][4][5]. Bandwidth enhancement for conical radiation using shorting wall has been studied recently [6].…”

Section: Communicationmentioning

confidence: 99%

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications

Narlawar¹,

Badjate

2015

2015 2nd International Conference on Electronics and Communication Systems (ICECS)

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Design of antenna for cognitive radio application is proposed in this paper. A novel antenna is presented here with the rectangular monopole modified by rounding the edges to improve the performance of antenna which serves as the sensing antenna for cognitive radio and the desired frequency reconfiguration for the communicating antenna is provided by defected ground structure and the slot in the feed-line with switches. A prototype of the antenna is fabricated and tested. A good agreement is found between the simulated and measured data.

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Section: Communicationmentioning

confidence: 99%

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications

Narlawar¹,

Badjate

2015

2015 2nd International Conference on Electronics and Communication Systems (ICECS)

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“…Suspended plate antennas (SPAs) have been used in many radio systems for their low cost, low profile, and broadband operations. Substantial efforts have been contributed to solve the broadband feeding, isolation of dual polarization channels, and radiation patterns of SPAs . In this respect, several L‐strip probe feeds have been used with dual‐polarized SPAs .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, electromagnetic band gap and defected ground structures have been investigated for that purpose. All these bring improvements in matching, isolation but may also cause distortions in radiation patterns . They affect the current distributions on the SPA and excite higher order modes.…”

Section: Introductionmentioning

confidence: 99%

High isolation dual-polarized broadband antenna for base stations

Çiydem¹,

Koc

2015

Microw. Opt. Technol. Lett.

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A broadband (1.71–2.17 GHz), high isolation, and dual‐polarized suspended plate antenna (SPA) is presented. Modified L‐probe feed is used for broadband matching and capacitive coupling. Port isolation between two orthogonally polarized channels is improved by making extensions on suspended plates (SPs) and inserting a vertical ungrounded square tube under the first SP (SP1). The prototyped SPA resulted in 8 ± 0.5 dBi gain and 67° ± 6° symmetric E‐plane and H‐plane radiation patterns with low cross‐polarization levels. Return losses ≤−15 dB and port isolation ≤−30 dB are achieved in the entire band. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:603–607, 2015

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“…Moreover, a ramp fed patch antenna is introduced in [29]. In probe-fed UWB patch antennas, achieving the radiation patterns with acceptable stability and low cross-polarization level across the whole frequency range is quite a challenge [30]. Minimizing the variations of the gain and achieving a stable gain over the frequency band are also challenges in such structures.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wideband Shorted Patch Antennas Fed by Folded-Patch With Multi Resonances

Malekpoor¹,

Jam²

2012

PIER B

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Abstract-Novel designs of probe-fed broadband shorted patch antennas for ultra-wideband (UWB) applications are presented in this paper. In these designs, unequal resonance arms fed by a folded patch produce multi resonances to broaden the impedance bandwidth. In the first design, the antenna consists of an asymmetric E-shaped patch, a folded-patch feed and shorting pins. This antenna is achieved by four adjacent resonances with the measured −10 dB impedance bandwidth of 76.18%. The pins are utilized to miniaturize the size of the patch. By introducing a folded ramp-shaped feed in the similar structure with the first design, a wider bandwidth with the five resonances is obtained. This improved design introduces an antenna with an impedance bandwidth of more than 110% and a considerable size reduction compared to the first antenna. The antennas present resonance tuning ability within the impedance bandwidth by varying the length of unequal arms. In addition, parametric studies are performed by investigating the effects of different key parameters on obtaining optimal designs of the proposed antennas.

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Ultrawideband Suspended Plate Antenna With Enhanced Impedance and Radiation Performance

Cited by 33 publications

References 29 publications

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications

High isolation dual-polarized broadband antenna for base stations

Ultra-Wideband Shorted Patch Antennas Fed by Folded-Patch With Multi Resonances

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Ultrawideband Suspended Plate Antenna With Enhanced Impedance and Radiation Performance

Cited by 33 publications

References 29 publications

A modified rectangular monopole antenna with defected ground structure &amp; slot in the feed-line for cognitive radio applications

A modified rectangular monopole antenna with defected ground structure &amp; slot in the feed-line for cognitive radio applications

High isolation dual-polarized broadband antenna for base stations

Ultra-Wideband Shorted Patch Antennas Fed by Folded-Patch With Multi Resonances

Contact Info

Product

Resources

About

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications

A modified rectangular monopole antenna with defected ground structure & slot in the feed-line for cognitive radio applications