نتایج جستجو برای: slot antenna

تعداد نتایج: 53646  

2015
Rahul Kumar Gupta Pramendra Tilanthe X. Chen W. Zhang R. Ma J. Zhang Jin-Ping Zhang Yun-Sheng Xu WeiDong Wang P. Li J. Liang Pratap N. Shinde B. K. Mishra John L. Volakis

In this paper, design and analysis of two compact coplanar waveguide (CPW) fed ultra wideband (UWB) slot antenna is presented. The proposed antenna consists of a rectangular slot on a ground plane and a triangular patch and another semi-circular patch at the interior portion of the feed that acts as tuning stub of the antenna. The return loss of the developed antenna are measured and compared, ...

2014
Cheng-Yuan Chin Christina F. Jou

Abstract—A novel horizontally polarized (HP) antenna with omnidirectional pattern is presented in this paper. The proposed antenna applies the concept of rotating electric field method to conventional slot dipoles. Two CPW-fed slot dipoles are placed in a perpendicularly conjugate form. By properly arranging the magnitude and phase of input signals, the omnidirectional pattern can be synthesize...

2015
Amrik Singh Sushil Kakkar Shweta Rani

A 3-sided truncated microstrip patch antenna with semicircular open slot for ultra-wideband (UWB) and SHF (Super High Frequency) applications has been presented in this paper. The proposed antenna is compact in size and designed on FR4 substrate. From the simulation and measurement results, it is shown that the corner-truncated With Semi Circular open slot patch scheme is an excellent approach,...

2014
I. Messaoudene T. A. Denidni

ELECT A new ultra-wideband (UWB) antenna integrated with a narrow-band (NB) antenna has been designed and fabricated. The UWB antenna consists of a U-shaped dielectric resonator fed by a microstrip line. In addition, the proposed structure integrates an NB slot with the same polarisation. The electromagnetic analysis is carried out by using two commercial software tools. To validate the propose...

2012
Nagraj Kulkarni S. N. Mulgi S. K. Satnoor

This paper presents the design and development of simple low cost rectangular microstrip antenna for multiband operation. By incorporating U-slot of optimum geometry and open stubs at two opposite corners on the rectangular radiating patch the antenna operates between 1.815 to 9.01 GHz at different frequency bands with a virtual size reduction of 44.84% and gives broadside radiation characteris...

2018
Kai Sun Deqiang Yang Sihao Liu Tianming Yang

In this paper, a wide-band low cross polarization antenna with a structure of microstrip line coupling to slot line as the balun is proposed. The radiation part of the antenna is fed by two pairs of parallel transmission line via a transition from a slot line which is coupled by a microstrip line. Because it is fed by parallel transmission lines, which is balanced-fed structure, the antenna can...

Journal: :IEICE Transactions 2007
Hiroyuki Uno Yutaka Saito Yoshio Koyanagi Satoshi Yagitani Isamu Nagano

This paper presents the switched-beam slot antenna over the electromagnetic band-gap (EBG) reflector. This antenna is composed of two slot elements fed with phase difference and the EBG reflector, which is applied in order to realize the low profile structure. The radiation characteristics of this antenna are calculated using the FDTD method. The calculated results show that the antenna height ...

Journal: :IEICE Transactions 2012
Dau-Chyrh Chang Chao-Hsiang Liao Powen Hsu

Power patterns in the frequency domain are usually used to describe the antenna performance in narrowband communication systems; however, they are not sufficient for ultra wideband (UWB) antennas in wideband communication systems. In this paper, energy pattern and energy gain are introduced to describe the performance of UWB antennas. Numerical simulations and measurements are used to demonstra...

2017
Haider K. Raad

In this paper, a compact wide-band, ultra-thin and flexible slot antenna intended for wearable applications is presented. The presented antenna is designed to provide Wireless Local Area Network (WLAN) and Long Term Evolution (LTE) connectivity. The presented design exhibits a relatively wide bandwidth (16003500 MHz below -6 dB impedance bandwidth limit). The antenna is positioned on a 33 mm x ...

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