A Miniature Circular Disc Monopole UWB Antenna with a Tapered Feed Line and a Circular Ground

2008 ◽  
Author(s):  
Yangjun Zhang ◽  
Tomonori Nakata ◽  
Toyokatsu Miyashita
Keyword(s):  
Circular Disc ◽  
Uwb Antenna ◽  
Feed Line

scholarly journals Design of Planar Microstrip Ultrawideband Circularly Polarized Antenna Loaded by Annular-Ring Slot

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Zhong-Hua Ma ◽  
Jia-Xiang Chen ◽  
Peng Chen ◽  
Yan Feng Jiang
Keyword(s):  
Impedance Matching ◽  
Axial Ratio ◽  
Fractional Bandwidth ◽  
Uwb Antenna ◽  
Compact Structure ◽  
Antenna Structure ◽  
Circularly Polarized ◽  
Annular Ring ◽  
Feed Line ◽  
Communication Devices

A miniaturized planar microstrip circularly polarized ultrawideband (UWB) antenna loaded by annular-ring slot is proposed and implemented in the paper. With the annular-ring slot loaded in the radiating patch of the antenna, the side of the radiating patch is connected by the asymmetric inverted L-shaped microstrip. At the same time, a quarter of a circle is cut off from the radiating patch. The above designed structure shows improvements on the operating frequency band and realization of the circular polarization radiation. A tapered microstrip is placed between the feed line and the radiating patch to achieve the slow-changing impedance transformation. The results of simulation and measurement demonstrate that the 3 dB axial ratio (AR) fractional bandwidth of the antenna structure achieves 21.25%. The peak gain within the 3 dB axial ratio bandwidth fluctuates between 3.74 and 4.59 dBi. The antenna shows good impedance matching in the ultrawideband range. With the compact structure of the UWB antenna, it has potential application in various wireless communication devices.

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 a Compact Tuning Fork-Shaped Notched Ultrawideband Antenna for Wireless Communication Application

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
M. N. Shakib ◽  
M. Moghavvemi ◽  
W. N. L. Mahadi
Keyword(s):  
Wireless Communication ◽  
Frequency Band ◽  
Return Loss ◽  
Tuning Fork ◽  
Ground Plane ◽  
Uwb Antenna ◽  
Feed Line ◽  
Compact Size ◽  
Uwb Communication ◽  
Compact Planar

A new compact planar notched ultrawideband (UWB) antenna is designed for wireless communication application. The proposed antenna has a compact size of0.182λ × 0.228λ × 0.018λwhereλis the wavelength of the lowest operating frequency. The antenna is comprised of rectangular radiating patch, ground plane, and an arc-shaped strip in between radiating patch and feed line. By introducing a new Tuning Fork-shaped notch in the radiating plane, a stopband is obtained. The antenna is tested and measured. The measured result indicated that fabricated antenna has achieved a wide bandwidth of 4.33–13.8 GHz (at −10 dB return loss) with a rejection frequency band of 5.28–6.97 GHz (WiMAX, WLAN, and C-band). The effects of the parameters of the antenna are discussed. The experiment results demonstrate that the proposed antenna can well meet the requirement for the UWB communication in spite of its compactness and small size.

Dual band-notched circular disc monopole UWB antenna with switchable five notched stop bands

2016 ◽  
Author(s):  
Ashok Kumar ◽  
Indra Bhooshan Sharma ◽  
Ritesh Kumar Saraswat ◽  
Mahendra Mohan Sharma
Keyword(s):  
Circular Disc ◽  
Dual Band ◽  
Uwb Antenna

scholarly journals DESIGN OF ULTRAWIDEBAND MONOPOLE ANTENNA WITH MINIMUM GROUND PLANE EFFECT

2014 ◽  
pp. 87-90
Author(s):  
PRAVEEN K P ◽  
T MARY NEEBHA
Keyword(s):  
Printed Circuit Board ◽  
Low Cost ◽  
Impedance Matching ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Circuit Board ◽  
Uwb Antenna ◽  
Printed Circuit ◽  
Feed Line ◽  
Simple Geometry

A Planar ultra wideband antenna design is analyzed for increased impedance matching in the Ultrawideband (UWB) range (3.1GHz to 10.6GHz). Also the effect of the ground plane is minimized by cutting slot on the ground plane. Impedance matching of Ultrawideband (UWB) antenna can be improved by introducing simple microstrip transitions between the 50-ohm feed line and the printed disc. In this paper a dual step feed is proposed between the feed line and radiator. It also offers a very simple geometry suitable for low cost fabrication and straightforward printed circuit board integration. Here triangle slot is provided on the ground plane in order to reduce the ground plane effect. The radiator used here is elliptical disc.

Sign in / Sign up

Export Citation Format

Share Document