نتایج جستجو برای: monopole antenna

تعداد نتایج: 48853  

2016
N.K.L. Pravallika P. Shivaji R. Rambabu Vijaya Durga

In this work defective ground structure monopole antenna is designed for wireless applications. The proposed antenna having an E-shaped slot on a patch with two backward slits and H-Shaped defect on a ground plane .The antenna exhibits its response on working band of 4-6 GHZ with an impedance bandwidth of 2 GHZ .In this work the radiation characteristics like return loss, gain, radiation patter...

2010
S. Myllymaki A. Huttunen V. Palukuru H. Jantunen E. Salonen

A capacitive method for measuring hand grip position on a mobile phone equipped with a dual-band planar inverted-F antenna (PIFA) and a monopole antenna was studied using different electrode arrangements. A capacitive sensor with a dual-electrode configuration and an antenna-integrated capacitive sensor for hand grip recognition were developed. The sensitivities of the sensors were measured alo...

2014
S. Ojaroudi Y. Ojaroudi N. Ojaroudi N. Ghadimi

─ In this study, we present an UltraWideband (UWB) monopole antenna with bandnotched function. The proposed antenna is fed by a microstrip line. By using two modified forkshaped slots in the ground plane, bandwidth is increased that provides a wide usable fractional bandwidth of more than 135% (2.82-15.63). In order to achieve band-rejected performance, a cross-ring slot was inserted at the squ...

2010
C. Deng Y. J. Xie J. F. Yuan

Abstract—An ultra wideband (UWB) coplanar waveguide (CPW) fed rectangular monopole antenna, which is of band notched characteristic for Wireless Local Area Network (WLAN), Worldwide inter-operability for Microwave Access (WiMAX) and the C-band satellite communications, is proposed, fabricated and measured. In order to obtain the desired dual band rejections, a piece of pentagonal slotline and a...

2009
J. Chen G. Fu

A novel printed top-loaded monopole antenna with a pair of sleeves on the ground plane for multiband wireless local area network (WLAN) applications is presented. This antenna is composed of a top-loaded monopole and two sleeves on a ground plane. Both the antenna and the ground plane are printed on the same side of an inexpensive FR4 substrate. This antenna has light weight and compact size of...

2012
X.-Q. Zhang Y.-C. Jiao W.-H. Wang

A miniature single-layer CPW-fed monopole antenna with triple-band operation for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications is presented. The proposed antenna, comprising a planar rectangular patch element embedded with dual U-shaped slot, is capable of generating three distinct operating bands, 2.37–2.53, 3.34– 3.82, and 4.23–6.8...

2009
Hisamatsu Nakano Noriaki Ikeda Yu-Yuan Wu Ryota Suzuki Hiroaki Mimaki Junji Yamauchi

The effects of parasitic elements on the voltage standing wave ratios (VSWR’s) of two antennas are investigated. First, a parasitic monopole is used for a normal-mode helical antenna. The VSWR investigation shows that dual-frequency operation is obtained by the parasitic element effects. The dualfrequency operation is revealed as a function of monopole position above a ground plane (monopole he...

2008
Lingling Zhong Bo Sun Jinghui Qiu Ning Zhang

Abstract— Study of a novel planar circular disc monopole ultrawide-band antenna fed by coaxial line is presented in this paper. The radiator, ground plane and the feeder equipment of the antenna are placed on the same plate. The special structure reduces the spatial volume, and it is used to realize the miniaturization of the antenna. The basic theory and design method are analyzed, and detaile...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1388

چکیده ندارد.

Journal: :journal of communication engineering 0
morteza nadi iran university of science and technology mohammad hosein fakheri department of electrical engineering, iran university of science and technology ali abdolali department of electrical engineering, iran university of science and technology

body centric wireless communication (bcwc) has been the topic of much research in recent years. in this manuscript, a novel low-cost microstrip patch antenna is designed for on-/off-body communications with a dual-band operation. the proposed structure exhibits a monopole-like radiation pattern at 2.45ghz and a broadside radiation at 4.8ghz, simultaneously. lateral dimensions of 42 mm × 46 mm a...

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