Design Of UWB Antenna Research Articles

Design and Simulation of a Compact UWB Antenna for Wireless Applications

Design and Simulation of a Compact UWB Antenna for Wireless Applications

Design of Microstrip UWB Antenna for Wireless Application

Design of Microstrip UWB Antenna for Wireless Application - written by Pratik Chandgude , Pranjali Wagh , Pratima Thorat published on 2020/07/23 download full article with reference data and citations

A Compact Planar UWB Antenna Design Using DGS for Wireless Applications

A Compact Planar UWB Antenna Design Using DGS for Wireless Applications

Design of compact reconfigurable UWB antenna with WiMAX and WLAN band rejection

Two reconfigurable UWB antennas with band rejection characteristics are presented in this paper. By applying concept of parasitic element and etching slot in these two proposed antenna design WiMAX and WLAN band rejection are obtained, respectively to avoid potential electromagnetic interference (EMI). The proposed antennas are printed on 30mm x 40 mm Rogers5880 substrate. Furthermore, ideal switches are employed to achieve switchable band rejection UWB antenna.In this paper, two designs of reconfigurable UWB antenna with band rejection were proposed; namely a reconfigurable UWB antenna with WiMAX band rejection (Antenna 1), reconfigurable UWB antenna with WLAN band rejection (Antenna 2). The proposed antennas were successfully simulated, fabricated and measured. The Antenna 1 have impedance bandwidth from 2.99 GHz to 10.58 GHz with band rejection at 3.52GHz by utilizing C-shaped parasitic stripline. Meanwhile, Antenna 2 achieved an operating bandwidth from 2.99 – 10.82GHz with VSWR less than 2 except for the WLAN band operating at 4.92 – 5.84 GHz.The measured results for both antennas show good agreement with simulated ones.

Compact Self Complementary UWB Antenna with Triple Band Notch Characteristics for Wireless Communications

the objective of this paper is to design and analysis of the Ultra wide Band Micro strip Patch Antenna which covers the Ultra Wide Band 2.9 to 21.5 GHz. To get an optimum results and performance of the projected self complementary UWB antenna depends on the study of dissimilar methods for optimizing the different parameters of the radiating patch along with notch dimensions. The proposed self complementary UWB antenna with overlapped rectangular shape patch and Defected DGS is designed with C-Slot in the radiating patch element and ground with L shaped slot which covers the whole UWB frequency band apart from band notches WLAN (5.125-5.825 GHz) ,Satellite Communications (7.9-8.5 GHz) and Ku band 13.4-14.5GHz.The UWB antenna performance is improved in terms of the Bandwidth by including Rectangular shaped slit between feeding element and the radiating patch. Now a days it is important to avoid existing wireless communication networks from the design of UWB antenna. The self complementary UWB antenna impedance bandwidth from 2.9 GHz to 21.5 GHz with a maximum of return loss S11 -43 dB at operating frequency10.5 GHz and with a Gain of 5.64dB.

Design and parametric evaluation of UWB antenna for array arrangement

This paper has introduced the concept of UWB antenna in array arrangements. The four elements of Balance Antipodal Vivaldi Antenna (BAVA) has been used for planar and H-plane array configuration in this research. Each single element of BAVA Antenna is printed on the glass-reinforced epoxy laminate material (FR4) along an overall thickness of 1.57mm and εr=4.3 respectively. The optimized measurement of each particular element is 60.75mm x 66mm approximatel. Further the parametric evaluation of four BAVA elements in different planes has been observed in this paper. The placement of array elements has almost coverd entire UWB frequency range and appropriate reflection coefficient which is better than -10dB has been established in both combinations. According to simulation results, the array elements in planar arrangement presenting a suitable reflection and works well at 3.2GHz frequency while the arrangement in H-plane the array elements works well at 7GHz of frequency. In planar arrangement, the operating frequency of antenna elements is shifting as results of the distance among inter elements which increase in wavelength. In H-plane arrangement an antenna elements generate additional gain up to 10.2 dB with good radiation patterns as compared to the planar plane. The CSTMWS simulation software has been used for antenna structural design and parametric verification.

Design and parametric evaluation of UWB antenna for array arrangement

This paper has introduced the concept of UWB antenna in array arrangements.The four elements of Balance Antipodal Vivaldi Antenna (BAVA) has been used for planar and h-plane array configuration in this research. Each single element of BAVA Antenna is printed on the glass-reinforced epoxy laminate material (FR4) along an overall thickness of 1.57mm and e r = 4.3 respectively. The optimized measurement of each particular element is 60.75mm x 66mm approximatel.Further the parametric evaluation of four BAVA elements in different planes has been observed in this paper. The placement of array elements has almost coverd entire UWB frequency range and appropriate reflection coefficient which is better than -10dB has been established in both combinations.According to simulation results, the array elements in planar arrangement presenting a suitable reflection and works well at 3.2GHz frequency while the arrangement in h-plane the array elements works well at 7GHz of frequency. In planar arrangement, the operating frequency of antenna elements is shifting as results of the distance among inter elements which increase in wavelength. In h-plane arrangement an antenna elements generate additional gain up to 10.2 dB with good radiation patterns as compared to the planar plane. The CSTMWS simulation software has been used for antenna structural design and parametric verification.

A modified microstrip line fed compact UWB antenna for WiMAX/ISM/WLAN and wireless communications

A novel design of compact UWB antenna is presented using a spanner shaped microstrip line. The proposed antenna consists of a rectangular patch with step slot at one of the lower edge and the defected ground plane embedded with a mirror imaged ‘P’ shaped slot. By using the novel spanner shaped feed line, the measured bandwidth of 153.22% (2.94–22.2 GHz) for VSWR ≤ 2 is achieved. The realised gain of the antenna is calculated and it is varying from −1.38 to 5.18 dB for the entire band of operation. The radiation patterns of the antenna are measured at 3.1, 6.85, 10.6 and 18 GHz which includes lower, middle and upper cut off frequencies of UWB region. The prototype of the design is fabricated and measurement is carried out in order to validate the proposed results. Also, the time domain analysis is performed to calculate the group delay and fidelity factor which are satisfying the UWB limits.

Design of CPW Band Notch Slot UWB Antenna at 8.7 and 10.2 GHz for Wireless Broadband Applications

Design of CPW Band Notch Slot UWB Antenna at 8.7 and 10.2 GHz for Wireless Broadband Applications

Gain improvement of tunable band-notched UWB antenna using metamaterial lens for high speed wireless communications

This paper introduces design of UWB antenna with gain improvement using single layer of metamaterial structure. The proposed UWB antenna consists of circular patch with stepped cuts and curvature in ground plane to achieve the desired matched impedance from 3.1 GHz up to 12 GHz. In order to achieve a notched frequency band from 5.7 to 5.9 for interference mitigation with WLAN applications, an omega structure is etched in the radiating patch. Lumped capacitor is inserted in omega structure to tune the notched frequency from 5.7 GHz (WLAN band) to 3.8 GHz (WiMAX band). The gain of UWB antenna is improved by adding single array layer with 3 × 2 inverted L-shaped metamaterial unit cells. The single layer metamaterial can modify the radiation pattern of the UWB antenna by enhancing its gain. This enhancement is due to the negative characteristics of the metamaterial structure which behaves as super lens when placed in front of the antenna as a cover. The realized gain is increased up to 5.5 dB within the achieved frequency range except the frequency band of the notch. The performance of the antenna is confirmed by the measured analysis with good agreement when compared with the simulated ones.

Data Mining Techniques in Artificial Neural Network for UWB Antenna Design

Data Mining Techniques in Artificial Neural Network for UWB Antenna Design

Design of UWB Antenna with WLAN & X-Band Notch for Wireless Communication

In this proposition, a traditional UWB antenna with twofold indent channels was intended for a few remote applications. The exhibited antenna is outlined having estimations of 30 × 35 × 1.6 mm3 with a fix of rectangular staircase design. The dismissal bands are WLAN at 5 GHz (5.1 - 5.8 GHz) and the satellite X-band from space to earth (7.25 - 7.75 GHz). The patch with a step design with a modified π-formed opening gets the ultra-wide band. The UWB scope of 3.1 - 10.6 GHz affirmed by FCC can possibly cause interferences in the various wireless systems applications.. With a specific end goal to lessen these interferences, we settled on the band indent. In this proposed outline, the WLAN has scores setting a U-molded opening in the patch and the X-band has indents with a reversed T-shape in the ground plane.

Design and Implementation of UWB Antenna with Band Rejection Characteristics

Design and Implementation of UWB Antenna with Band Rejection Characteristics

Design and Analysis of a Compact Band Notch UWB Antenna for Body Area Network

This paper presents the design of a small printed ultra wideband antenna with Band Notched characteristics. Both the free space and on-body performances of this antenna were investigated through simulation. The newly designed UWB antenna is more revised small form factor sized, with the ability to avoid interference caused by WLAN (5.15 - 5.825 GHz) and WiMAX (5.25 - 5.85 GHz) systems with a band notch. The return loss response, gain, radiation pattern on free space of the antenna were investigated. After that, the on-body performances were tested on 3-layer human body model with radiation pattern, gain, return loss, and efficiency at 3.5, 5.7, 8, 10 GHz and all the results were compared with free space results. As the on-body performance was very good, the proposed antenna will be suitable to be used for multi-purpose medical applications and sports performance monitoring.

UWB Antenna Design for Dispersion Free Time Synchronized Pulse Radiation

An antenna that radiates nondispersive and time-aligned wave-fronts at all angles of radiation (in a half-space) is introduced. The antenna operates by the coupling of a broadband plane wave through an aperture of subwavelength diameter in a metal screen. The metal screen acts as a traveling wave structure for the diffracted broadband pulse that is coupled through the source aperture. The antenna produces spherical wavefronts which gives an apparent condition that its radiation originates from a point source. Having an impulse-like transfer function, the antenna radiates pulses with high fidelity. Applications for the antenna can be a pulse transmitter antenna for ultrawideband radar imaging and base station antenna for communications.

Simulation-based optimization for rigorous assessment of ground plane modifications in compact UWB antenna design

Introducing ground plane modifications is a popular approach in the design of compact UWB antennas. Yet, specific topological alterations are normally reported on case to case basis without thorough investigations concerning their general suitability for antenna miniaturization. In particular, detailed performance comparison of different ground plane modifications is lacking in the literature. In this article, the effect of selected ground plane modifications on achievable miniaturization rate is considered based on a set of four UWB antennas. EM-driven optimization is carried out to minimize the antenna footprints while maintaining acceptable matching within the UWB frequency range. In each case, all geometry parameters of the respective structures are utilized in the design process. For the sake of fair comparison, all antennas are implemented on the same dielectric substrate. Our results indicate a clear performance pattern, here, an advantage of the elliptical ground plane slit below the feed line over the rectangular one (average size reduction ratio of 26% versus 19% across the benchmark set). Our conjectures are confirmed by physical measurements of the fabricated antenna prototypes.

Design of a Compact UWB Antenna with Triple Notched Bands Using Nonuniform Width Slots

A compact printed UWB antenna with triple band-notched characteristics is proposed. Instead of conventional uniform width slots, two pairs of quarter-wavelength length nonuniform width slots are embedded into the radiating patch and the ground plane to achieve triple notched bands at 3.5, 5.5, and 8.1 GHz. A parameter study is performed to examine the effect of widths and lengths of the slots on the band-notched characteristics. It indicates that the centre frequencies and the bandwidth of notched bands can be controlled by tuning the physical parameters of the slots. Frequency domain measurements including return loss, antenna transfer function, group delay, and gain of the proposed antenna have been carried out. Corresponding results demonstrate that compact UWB antennas with multiple notched bands can be obtained by using nonuniform width slots.

원형 패치와 포크형 구조가 결합된 UWB 안테나

원형 패치와 포크형 구조가 결합된 UWB 안테나

Ultra-Wideband Antenna’s Design Techniques

The main objective of this paper is to understand the different methodologies which have been adopted in the recent years in design of Ultra-Wideband Antenna. Methods/Statistical analysis: The patch of the UWB antenna is etched with circular rings to obtain wider bandwidth. Rabbet structured patch can also be utilized for enhancing bandwidth. Ground plane of UWB antenna’s in some cases is parabolic and some have T or L-shape slots to enhance antenna characteristics like increasing bandwidth, band notching at certain frequencies etc. dielectric substrate FR4 is preferred in most of the UWB antenna designs due to less return loss and better bandwidth utilization. Findings: With help of circular patch, more than 160% of Bandwidth is attainable. Use of triangular slots in ground plane can help increase the bandwidth by 45%. A further alteration in ground plane such as grooved ground plane can help minimize the surface waves. Application/Improvements: Since T-shaped slots increases directivity so they are preferred in air-bore applications. L-shaped slots in ground plane helps in RADAR applications.

Design of UWB Antenna for Air-Coupled Impulse Ground-Penetrating Radar

This letter presents a new transverse electromagnetic flared horn antenna for the demanding requirement of an air-coupled impulse ground-penetrating radar. Structure anatomy is performed focusing on achieving good impedance matching throughout the wide frequency band. The design procedure starts with constructing an analytic model to evaluate the preliminary physical dimensions to achieve minimum reflections. Structural fine tunings are then performed for optimization. The antennas are fabricated and tested. Experimental results validate the design effectiveness.