A diamond shaped small planar ultra wide band (UWB) antenna for microwave Imaging Purpose

2007 ◽  
Author(s):  
Iftekhar Hossain ◽  
Sima Noghanian ◽  
Stephen Pistorius
Keyword(s):  
Wide Band ◽  
Microwave Imaging ◽  
Ultra Wide Band ◽  
Uwb Antenna

scholarly journals A Novel Compact Microstrip UWB Rectangular Stair Slot Antenna for the Analysis of Return Losses

2019 ◽  
Vol 8 (10) ◽  
pp. 4597-4603 ◽  
Keyword(s):  
Return Loss ◽  
Wide Band ◽  
Directional Pattern ◽  
Slot Antenna ◽  
Ultra Wide Band ◽  
Radiation Patterns ◽  
Uwb Antenna ◽  
Antenna Performance ◽  
Ansoft Hfss ◽  
Radiation Behavior

This article deals with the various designs of a novel compact microstrip fed UWB antenna to investigate the corresponding return losses of different structures. The dimension of the designed antenna is 33 x 19 x 1.9 mm3 with FR4 substrate and it can be operated from 2.846 - 11.7458 GHz. The effects of varying the structure of antenna are to exhibit the investigation of corresponding return losses. Different structures of antenna are simulated in Ansoft HFSS simulator. The results of return losses and radiation patterns are explored with the ultra wide band (UWB) rectangular Stair slot antenna. The modified structure of antenna shows the minimized return loss with an enhanced bandwidth that satisfies good UWB characteristics. Antenna performance can also be explored from the radiation behavior of the antenna which is relatively omni-directional pattern for rectangular Stair slot antenna

scholarly journals Twin Band-Notched Ultrawideband MIMO Antenna

2019 ◽  
Vol 9 (2) ◽  
pp. 3711-3715
Keyword(s):  
Wireless Communication ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Uwb Antenna ◽  
Mimo Antenna ◽  
Mimo Antennas ◽  
Twin Band ◽  
Sharp Rejection ◽  
Bandwidth Capacity ◽  
Diversity Antenna

In this article, we have presented various techniques that are used for improving different parameters related to UWB antenna. In this Paper, we planned for MIMO antennas in contemporary wireless communication which enhances the bandwidth and gives compact antennas. The antenna band we notched is of planned MIMO which offers an bandwidth with the operational band-notched. The bandwidth capacity of the antenna is from 2.93-20 gigahertz with sharp rejection at WLAN-band with isolation of not exactly - 22 dB is accomplished for the whole band, by utilizing a simple modified shaped structure in the bottom plane, port isolation and transmission capacity are improved. The diversity execution performance is likewise contemplated and whole outcomes shows it’s a potential point of using MIMO based diversity antenna for ultra wide band applications which is demonstrate in this paper. The parameters to assess the performance of the MIMO are explained, the whole examination completed in different sections has been outlined

scholarly journals A 3 – 18 GHz UWB Antenna with modified feed-line

2021 ◽  
Author(s):  
Srikanth Itapu
Keyword(s):  
Medical Imaging ◽  
Planar Waveguide ◽  
Ground Plane ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Uwb Antenna ◽  
Feed Line ◽  
Iot Applications

Abstract A Co-Planar Waveguide fed circular ultra-wide band antenna with modified ground-plane and feedline is designed on a FR4 (ϵr=4.3) substrate of thickness 0.01λ0. The proposed antenna exhibits an overall impedance bandwidth ranging from 2.99 GHz to 18.0 GHz and beyond (with S11< -10 dB). Design parameters have been optimized to achieve the UWB bandwidth. The measured radiation patterns of this antenna are omnidirectional in H- plane and bidirectional in E-plane. An extended impedance bandwidth is achieved as a result of modified feed-line. The proposed antenna can be used for medical imaging and urban IoT applications.

scholarly journals Design of UWB Antenna With Multi slot for Wireless Communication

2018 ◽  
Vol 7 (2.7) ◽  
pp. 507
Author(s):  
K V.Prashanth ◽  
N Sai Venkatesh ◽  
B Umamaheswari ◽  
M Mukesh ◽  
G Praneeth ◽  
...  
Keyword(s):  
Communication System ◽  
Satellite Communication ◽  
Local Area Network ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Area Network ◽  
Uwb Antenna ◽  
Band Frequency ◽  
Satellite Communication System ◽  
X Band

A Compact dual slot ultra-wide band (UWB) Antenna for WLAN and X-Band applications is proposed. The projected antenna is designed for the planar ultra-wide band (UWB) antenna and ultra-wide band (UWB) with two band dismissals. The proposed antenna overall size is 30x40x1.6. The antenna comprises of Rectangular patch imprinted on the Flame Resistant (FR4) substrate with 50Ω input impedance. FR-4 is a composite material made out of fiberglass fabric woven with an epoxy pitch cover that is fire safe (self-dousing). "FR" implies fire resistant, and means that the material meets the standard. This patch consists of dual slot one for WLAN and one for X-band Satellite Communication System. The antenna intended with return loss (RL) >= 10db and frequency ranges between 3.1 to 10.6 GHz with VSWR<2. The antenna works for the applications of wireless local area network (WLAN) system (5.15 – 5.825 GHz), X-band downlink (7.25 - 7.75). The ultra-wide band frequency range for these wireless systems causes interference. To reduce the interference, band notching is done. The WLAN and X-Band satellite communication system bands are forbidden by inserting slots in the patch. The proposed antenna is having high gain at the pass bands while a sharp drop at the forbidden bands.  

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

2018 ◽  
Vol 7 (2.7) ◽  
pp. 484
Author(s):  
K V.Prashanth ◽  
A Tejasri ◽  
K Sandeep ◽  
U Sateesh Kumar ◽  
G Swarupa
Keyword(s):  
Wireless Communication ◽  
Ground Plane ◽  
Wireless Systems ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Uwb Antenna ◽  
X Band ◽  
5 Ghz

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.   

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