Results 221 to 230 of about 2,867 (253)

Compact bandpass filters using defected ground structure (DGS) coupled resonators

IEEE MTT-S International Microwave Symposium Digest, 2005., 2005
This paper introduces new compact DGS resonators and ways to implement intra-resonator and external coupling. Different coupling configurations are considered. These new resonators are then applied to design bandpass filters with Chebyshev or pseudo-elliptic responses. Experimental results are presented to show the performance of these filters.
A. Abdel-Rahman, A.R. Ali, S. Amari, A.S. Omar   +3 more
openaire   +1 more source

A novel compact defected ground structure (DGS) low pass filter

2006 Asia-Pacific Microwave Conference, 2006
This paper introduces new compact defected ground structure (DGS). The equivalent circuit parameters have been extracted using circuit analysis. The proposed DGS has smallest rectangular occupying area and it is 15.3 % more compact than the previously reported structure in the literature.
null Akhilesh Mohan, null Animesh Biswas
openaire   +1 more source

Design of reconfigurable defected ground structure (DGS) for UWB application

2012 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2012
This paper presents the design of reconfigurable defected ground structure (DGS) resonator that can be integrated with ultrawide-band (UWB) microwave filter to produce bandpass and bandstop response simultaneously. The reconfigurable DGS is designed based upon coplanar waveguide (CPW) technology to exhibit bandstop characteristic at 3.5 GHz and 5.5 GHz
Z. Zakaria, N. A. Shairi, R. Sulaiman, W. Y. Sam   +3 more
openaire   +1 more source

Ultra-wideband hexagonal MIMO antenna with Defected Ground Structure (DGS)

2015 13th International Conference on Electromagnetic Interference and Compatibility (INCEMIC), 2015
In this paper, a compact planar Multiple Input Multiple Output antenna system of size 36 mm × 40 mm with two hexagonal monopole elements with L shaped slots is proposed. The UWB operation is achieved by a semicircular shaped Defected Ground Structure (DGS) and the shape of the DGS is optimized to get good return loss.
B. Ramesh, M. Ramesh, V. Rajya Lakshmi
openaire   +1 more source

Microstrip bandstop filter using spurline and defected ground structures(DGS)

Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, 2011
Microstrip filters are widely used in microwave circuit, This paper briefly describes the design principle of microstrip bandstop filter (BSF). A compact wide band high rejection BSF is presented. This filter consists of two parts: defected ground structures filter (DGS) and spurline filter. Due to the inherently compact characteristics of the spurline
null Wang Wenping, null Kuang Jialong, null Zhao Lei, null Mei Xiaohan   +3 more
openaire   +1 more source

New Coplanar Low-Pass Defected Ground Structure (DGS) Filter

2010
This chapter presents the design of a new compact low-pass defected ground structure filter (DGS LPF). The proposed structure is based on coplanar waveguide (CPW) lines and λ/4 resonators. The filter provides three transmission zeros within the stop-band and offers bandwidth of 8.3 GHz, namely from 3.1 to 11.4 GHz. The stop-band rejection is more than −
A. Batmanov, A. Boutejdar, A. Balalem, A. Omar, E. Burte   +4 more
openaire   +1 more source

Microstrip Antenna with Defected Ground Structure (DGS) for Multiband Operation

2016
In this paper, a microstrip feeding rectangular MPA using DGS structure into ground plane is presented. In the absence of a slot, a conventional rectangular MPA is also considered for confirming the validity of designed antenna. This conventional antenna design was found to resonate on 7.0611 GHz frequency at −23.70 dB return loss. When introducing the
null Vinay Sharma, Rajesh Kumar Vishwakarma   +1 more
openaire   +1 more source

Coplanar waveguide (CPW) defected ground structure (DGS) for bandpass filter application

Microwave and Optical Technology Letters, 2004
AbstractIn this paper, we design and implement a coplanar waveguide (CPW) bandpass filter utilizing defected ground structure (DGS) technology. The CPW DGS technology, which only needs one or a series connection of a few cells to exhibit the bandgap characteristics, can provide the attenuation poles in the upper and lower bands to improve the rolloff ...
Man‐Long Her, Yu‐Zhen Wang, Chih‐Min Chang, Kun‐Ying Lin   +3 more
openaire   +1 more source

A Novel Defected Ground Structure (DGS) Resonator for Bandpass Filters Applications

2007 Asia-Pacific Microwave Conference, 2007
This paper introduces new compact bandpass filter using novel defected ground structure. Different coupling configurations and external coupling have been considered here. Different types of feeding arrangement show the different responses of the bandpass filter. Several second and third order bandpass filters have been designed.
Akhilesh Mohan, Animesh Biswas
openaire   +1 more source

An ultra broadband antenna (UWB) loaded with defected ground structure (DGS)

2011 International Conference on Electronics, Communications and Control (ICECC), 2011
In this letter, an ultra broadband antenna (UWB) loaded with defected ground structure (DGS) is presented. The UWB antenna with circle radiation patch is fed with 50Ohm mictostrip line. The DGS structure is introduced to the ground under the feed line and hence the frequency selectivity is also introduced to this UWB antenna.
Bo-ran Guan, Zhong-hai Zhang
openaire   +1 more source