Ultra wide band antenna with enhancement efficiency for high speed communications

Zahran, Sherif R.; Ahmed, Omar H. El Sayed; El-Shalakany, Ahmad T.; Saleh, Sherif S.; Abdalla, Mahmoud A.

doi:10.1109/nrsc.2014.6835062

Cited by 7 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this section, the preliminary design of a one-port UWB antenna is presented. This design takes into account the scientific results available in the literature [17][18][19][20][21][22][23]. These results show that round shapes, round edges, partial grounds, and partial grounds with specially designed slots play a major role in obtaining UWB performance [6,18,19].…”

Section: Proposed Single Port Uwb Antenna Designmentioning

confidence: 95%

A Compact Novel Three-Port Integrated Wide and Narrow Band Antennas System for Cognitive Radio Applications

Kumar

Gandhi

2016

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

The design of a three-port radiating structure, integrating wide and narrow band antennas for cognitive radio applications, is presented. It consists of a UWB antenna for spectrum sensing and two narrow band antennas for wireless communication integrated on the same substrate. The UWB antenna covers the complete UWB spectrum (3.1 GHz to 10.6 GHz) approved by FCC. In the two narrow band antennas, each antenna presents dual bands. In particular, the first narrowband antenna resonates at 6.5 GHz, covering the frequency band between 6.36 GHz and 6.63 GHz, and at 9 GHz, covering the frequency band between 8.78 GHz and 9.23 GHz, presenting minimum return loss values of 28.3 dB at 6.5 GHz and 20.5 dB at 9 GHz, respectively. Similarly, the second one resonates at 7.5 GHz, covering the frequency band between 7.33 GHz and 7.7 GHz, and at 9.5 GHz, covering the frequency band between 9.23 GHz and 9.82 GHz, presenting minimum return loss values of 19.6 dB at 7.5 GHz and 28.8 dB at 9.5 GHz, respectively. Isolation among the three antennas is less than −20 dB over the UWB frequency spectrum. These antennas are realized on a FR4 substrate of dimensions 30 mm × 30 mm × 1.6 mm. Experimental results show a good agreement between the simulated and measured results.

show abstract

Section: Proposed Single Port Uwb Antenna Designmentioning

confidence: 95%

A Compact Novel Three-Port Integrated Wide and Narrow Band Antennas System for Cognitive Radio Applications

Kumar

Gandhi

2016

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…The nonradiative section of the patch can be tapered to increase efficiency. 95,96 Paper 95 describes a microstrip fed T-shaped antenna with a tapered transition and curved edges. The bandage slot is cut from a T-shaped patch.…”

Section: Curved Edges Antennamentioning

confidence: 99%

“…The antenna's radiation efficiency exceeds 82%, and its bandwidth is 109.48% at 3.1 to 10.6 GHz. 95 A modified edge semicircular antenna with curved edges in patch and coplanar ground is used in paper 97 to eliminate diffractions at the edges while also enhancing the antenna's radiation properties through size downsizing and bandwidth augmentation. Smooth rounded edges, rather than sharp edges, are necessary to optimize carefully so that the appropriate band of operation with acceptable efficiency and gain is achieved.…”

Section: Curved Edges Antennamentioning

confidence: 99%

“…Because the wavelength at microwave frequencies is long, the antenna will be huge; thus, size downsizing is an issue to consider for mobile antennas. Methodologies such as defected ground structures, 33 modified edge semicircular antenna with curved edges in patch and coplanar ground, 97 semicircular monopole antenna, 87 cavity backed structure, 69 slotted T-shaped antenna with curved edges, 95 AMC based structures 18 give high efficiency while remaining compact. Techniques like metamaterial inspired antenna, 74 Fabry-Perot antenna, 15 monopolar patch antennas (MPAs) coupled with Y type structure, 32 reflect array, 77 and others give excellent efficiency but are huge in size.…”

Section: Comparative Analysis Of Various Efficiency Enhancement Techn...mentioning

confidence: 99%

See 1 more Smart Citation

Efficiency enhancement techniques of microwave and millimeter‐wave antennas for 5G communication: A survey

Nahar

Rawat

2022

Trans Emerging Tel Tech

View full text Add to dashboard Cite

Efficiency is a critical antenna parameter that describes how well an antenna emits and accepts electromagnetic signals. When an antenna has poor efficiency, the input power is only partially radiated and is primarily wasted due to internal losses such as conduction, dielectric, mismatching, and several other losses within the antenna. In order to enhance signal quality, a communication system requires an antenna with high efficiency and gain. The fifth-generation wireless system will use millimeter wave spectrum along with sub 1 GHz and sub 6 GHz bands to fulfill wide bandwidth, ultra-high-speed, and low latency requirements of 5G communication. Compact low-profile antenna with high radiation efficiency, high gain, and wideband characteristics are required to support bandwidth requirements of 5G and mitigate the signal degradation due to high link losses caused by environmental absorptions at the millimeter-wave (mm-wave) spectrum. Compact planar antennas have become an important part of modern wireless communication equipment, but these antennas are associated with many issues like low efficiency, poor gain, small radiation resistance, and high cross-polarization, which is due to the increased conductor and dielectric losses, surface wave losses and so forth. Various techniques need to be employed for the improvement of the efficiency of the antenna, which results in high gain low loss antenna characteristics. This article presents the survey of various efficiency enhancement techniques for 5G antennas and a review of structures that provides good radiation efficiency for 5G communications.

show abstract

“…The UWB systems have drawn the attention of researchers due to their advantages, such as high data rates, low cost, low power consumption, simple hardware configuration in practical applications, and good resistance for multipath [2, 3]. Hence, many UWB generation techniques have been proposed, such as UWB filters [4–7] and UWB antennas [8–12] have been proposed. The printed UWB antennas have been investigated because of its advantages such as easy fabrication, small size, low cost, and they can be easily integrated with radio‐frequency (RF) components.…”

Section: Introductionmentioning

confidence: 99%

Resonator switching techniques for notched ultra‐wideband antenna in wireless applications

Abdalla¹,

Ibrahim

Boutejdar³

2015

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

This study presents the design of switching techniques for dual‐notched ultra‐wideband antenna. The dual band‐notched frequencies are achieved by using switched defected microstrip structure band stop filter inserted in the microstrip feed line and a switched meandered slot etched in the radiation patch. The switching reconfiguration is accomplished by combining the two ideal switches to introduce a notch filter response to prevent the interference to the primary users operating in the middle and upper WiMAX wireless local area network bands. The proposed structure has four modes by controlling the two switches on and off. The proposed antenna has good matched impedance from 2.5 to 12 GHz with two notched bands from 3.3 to 3.8 GHz (middle WiMAX applications) and from 5.1 to 5.9 GHz (upper WiMAX applications). The antenna is fabricated and tested. Good agreement is achieved between the simulated and measured results.

show abstract

Ultra wide band antenna with enhancement efficiency for high speed communications

Cited by 7 publications

References 4 publications

A Compact Novel Three-Port Integrated Wide and Narrow Band Antennas System for Cognitive Radio Applications

A Compact Novel Three-Port Integrated Wide and Narrow Band Antennas System for Cognitive Radio Applications

Efficiency enhancement techniques of microwave and millimeter‐wave antennas for 5G communication: A survey

Resonator switching techniques for notched ultra‐wideband antenna in wireless applications

Contact Info

Product

Resources

About