Design of a new printed slot antenna for UWB application

2010 International Conference on Computational Intelligence and Communication Networks, 2010

A simple and compact coplanar waveguide (CPW)-fed ultra wide band antenna is presented. The UWB antenna consists of a rectangular patch, which is etched onto an FR4 printed circuit board(PCB) with an overall size of 30mmX35mmX0.76mm. The simulation show that the UWB antenna achieves good impedance matching, consistent gain, and consistent group delay over an operating bandwidth. The correlation between the mode-based field distribution is discussed. Extended from the UWB antenna, four notch (5-6GHz) designs are also presented as a desirable feature for UWB application.

Progress In Electromagnetics Research C, 2010

In this paper, a novel band-notched circular slot (BNCS) antenna for ultra-wideband (UWB) communication is proposed. This antenna is comprised of a circular stub that excite similar-shaped slot aperture. The proposed antenna is designed on the RO4350B substrate with thickness of 500 µm and relative permittivity (ε r) of 3.4 to operate in UWB band released by the US's Federal Communications Commission (FCC) in 2002 (i.e., 3.1-10.6 GHz). To reject the frequency band of 5.15-5.825 GHz, which is limited by IEEE 802.11a and HIPERLAN/2, an inverted-cup strip is parasitically attached to the feed layer. The size of our proposed antenna is 50 × 50 mm 2 , and this antenna has good radiation characteristics. Effects of varying the parameters of parasitic inverted-cup strip on performance of the proposed antenna have been studied. The antenna with optimal parameters obtained from parametric study is fabricated and measured. It is observed that the simulated and experimental results have good agreement with each other.

International Journal of Antennas and Propagation, 2008

A novel printed monopole antenna employing a slotted-plate, which is electromagnetically coupled to the microstrip-fed planar element, is proposed to provide notch-frequency function. This technique enables stopband characteristics with improved control, compared to placing the slot in the microstrip-fed element. A detailed investigation of the rejectband properties has been made for the UWB antenna. Measured data for the optimized case show the 10 dB return loss bandwidth to be 9.8 GHz (from 2.80 GHz to 12.60 GHz) with a notchband frequency from 5.15 GHz to 5.825 GHz. Propagation measurements indicate that the electromagnetically coupled slot provides a greater reduction in stopband gain for the three principal planes, compared to placing the slot in the fed element. This is desirable to mitigate interference from WLAN systems. A full parametric study of the antenna is presented.

… , Proceedings of the …, 2011

A novel technique for adding simultaneously extra band and notches to a compact ultrawideband (UWB) printed slot antenna is proposed. The UWB slot antenna is in the shape of an eight-sided polygon. The notched band are centered at 5.8 GHz WLAN and ...

Progress in Electromagnetics Research-pier, 2008

Two kinds of band-notched ultra wide-band slot antennas are proposed. Printed on a dielectric substrate of FR4 with relative permittivity of 4.4 and fed by a 50 Ω microstrip line, the proposed antennas introduce semicircular annular strips to reject the frequency band (5.15-5.85 GHz) limited by IEEE802.11a. The parameters which affect the performance of the antennas in terms of its frequency domain characteristics are investigated in this paper.

Microwave and Optical Technology Letters, 2000

have a common propagation axis on X, Y axis, consequently, it is possible to communicate with a tag on twice band is this axis.

As per Federal Communication Commission (FCC) standard 3.1~10.6 GHz is unlicensed frequency band for UWB communication. Notching will be helpful to avoid interference between UWB and some narrow band that are WiMAX (3.3–3.7GHz), C-band satellite downlink (3.7GHz–4.2GHz), WLAN (5.15–5.825 GHz), DSRC (5.50–5.925 GHz) etc. Different notching techniques are discussed in this paper. Some techniques include adding parasitic stubs of different shapes, rectangular slits, and slots. In this paper comparative study will be done for different notching techniques.

Proceedings of the 2015 International Conference on Management, Education, Information and Control, 2015

To reduce the size of wireless equipment, an ultra wide band (UWB) antenna is designed in this paper, and much smaller size is implemented. The antenna has a circular slot on the radiating element for wireless applications. By using microstrip structure, the proposed antenna is designed to work on a thick substrate h=1.14mm with relative permittivity εr = 3. Its measured bandwidth covers the UWB band from 2.2GHz to more than 12GHz, that is, 138% fractional band width for return loss less than-10dB.

2019

This article submits a bandwidth enhancing technique using E-shape slot and 3 notches on the bottom corners of the patch for an antenna with micro strip line. The proposed small size antenna on 20 mm × 20 mm printed on substrate type (FR-4) is designed and confirmed through simulations. Reception apparatus parameters are moldered and introduced utilizing programming CST. The results show that at frequency 8 GHz the return loss value is-18.08 dB with VSWR 1.29; at frequency 10.04 GHz the return loss value is-45.9 dB with VSWR 1.03. The bandwidth of the proposed antenna is 3.1 GHz or about 34.33% at VSWR < 2, which can therefore be classified as UWB antenna.

2017

Small, printed rectangular slot antenna for ultra-wideband (UWB) applications is proposed in this article. In this proposed antenna, inverted T-shaped conductor backed plane used to achieve the UWB coverage by increasing the impedance bandwidth of the rectangular slot antenna. Then frequency band notched performance can be achieved by using rotated C-shaped conductor backed plane around the inverted T-shaped conductor backed plane. Then band width can be controlled by etching inverted T-shape in the square radiating patch on the top layer. The proposed antenna has a very small size which is 21 mm x 26.8 mm. The antenna has VSWR &lt; 2 for the UWB from 3.0811 to 10.737 GHz except for the band notch from 5.1429 to 5.9523 GHz for this VSWR &gt; 5. Keywords T-shaped conductor backed plane, rectangular slot antenna, rotated C-shaped conductor-backed plane, UWB application, SMA, FR4. INTRODUCTION In UWB communication systems, the design of antenna having wideband characteristics and compa...

Journal of Microwaves, Optoelectronics and Electromagnetic Applications , 2011

2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications

Microsystem Technologies, 2014

Progress In Electromagnetics Research C, 2011

A microstrip-fed slot antenna is proposed for short-range UWB communication. First, the characteristics of a conventional circular monopole UWB antenna, as a representative of a class of UWB antennas seen in the literature, are examined in time (pulse-shape) and frequency (reflection and transmission coefficients) domains. From these measurements, certain limitations of this class of antennas are brought out, which are not widely recognized. We then demonstrate that with proper optimization the traditional microstrip-fed slot antenna overcomes these defects and is an excellent candidate for UWB communication systems. This claim is justified with measurements in time domain and frequency domain.

Antennas and Propagation ( …, 2010

The design and analysis of novel printed slot antenna, fed by microstrip line, for Ultra Wide Band (UWB) communication systems is presented. Detailed simulation and experimental investigations are conducted to understand its behaviour and optimize for UWB operation. The designed antenna has a wide operating bandwidth of over 126% (2.4-10.6 GHz) for-10dB return loss. In addition to being small in size, the antenna presents stable far-field radiation characteristics in the entire operating bandwidth, relatively high gain. A parametric study has been carried out to understand the effects of various dimensional parameters and to optimize the performance of the designed antenna.