scholarly journals A Novel UWB TEM Horn Antenna with a Microstrip-Type Feed

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Youcheng Wang ◽  
Guangyou Fang ◽  
Hai Su ◽  
Yicai Ji ◽  
Shengbo Ye ◽  
...  
Keyword(s):  
Communication Systems ◽  
Return Loss ◽  
Low Frequency ◽  
Horn Antenna ◽  
Ultra Wideband ◽  
Buried Objects ◽  
Type Transition ◽  
Compact Size ◽  
Feeding Structure ◽  
Tem Horn

A novel ultra-wideband (UWB) TEM horn antenna fed by a microstrip-type transition is designed. The feeding structure is directly realized by a microstrip line with the merit of compact size and UWB. To broaden the low frequency band, an arc surface is added at the end of the flare plates. Numerical simulation is applied to discuss the effect of the geometry construction which contains the microstrip-type transition and the circular arc surface at the end of radiating arm. Return loss, radiation pattern, and gain of the fabricated antennas are measured. The measured results show that the antenna yields a wide bandwidth ranging from 1 GHZ to 10.3 GHz with return loss less than −10 dB. The antenna also achieves unidirectional radiation patterns with stable antenna gain. These characteristics imply that the compact antenna may be used for detecting buried objects in the wall or UWB communication systems of band like GSM, Wi-Fi, and so forth.

scholarly journals A Compact Vivaldi Shaped Partially Dielectric Loaded TEM Horn Antenna for UWB Communication

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mustafa İlarslan ◽  
A. Serdar Türk ◽  
Salih Demirel ◽  
M. Emre Aydemir ◽  
A. Kenan Keskin
Keyword(s):  
Communication Systems ◽  
Horn Antenna ◽  
High Gain ◽  
Simulation Software ◽  
Antenna Structure ◽  
Horn Antennas ◽  
Compact Antenna ◽  
Uwb Antennas ◽  
Tem Horn ◽  
Uwb Applications

Ultrawideband (UWB) antennas are of huge demand and Vivaldi antennas as well as the TEM horn antennas are good candidates for UWB applications as they both have relatively simple geometry and high gain over a wide bandwidth. The aim of this study is to design a compact antenna that achieves maximum gain over a bandwidth between 1.5 and 10.6 GHz while minimizing its size. The idea is to make use of combined respective advantages of Vivaldi and TEM horn antennas to achieve the desired goals by shaping the TEM horn antenna to look like a Vivaldi antenna. The antenna structure is modified by a dielectric load in the center to increase the gain bandwidth. It is placed in a surrounding box made of PEC material to reduce the undesired side lobes and to obtain more directive radiation pattern. The simulations are performed by using the CST STUDIO SUITE electromagnetic (EM) simulation software and they are later verified by the actual measurements. The Vivaldi shaped partially dielectric loaded (VS-PDL) TEM horn antenna is proposed as a compact UWB antenna for systems using the newly established UWB band and also for the communication systems of popular bands like ISM, Wi-Fi, and GSM.

scholarly journals A Rectangular Planar Spiral Antenna for GIS Partial Discharge Detection

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Xiaoxing Zhang ◽  
Yefei Han ◽  
Wei Li ◽  
Xuetao Duan
Keyword(s):  
Electromagnetic Interference ◽  
Electromagnetic Waves ◽  
Partial Discharge ◽  
Low Frequency ◽  
Horn Antenna ◽  
Spiral Antenna ◽  
Cavity Structure ◽  
Measurement Results ◽  
Defect Simulation ◽  
Tem Horn

A rectangular planar spiral antenna sensor was designed for detecting the partial discharge in gas insulation substations (GIS). It can expediently receive electromagnetic waves leaked from basin-type insulators and can effectively suppress low frequency electromagnetic interference from the surrounding environment. Certain effective techniques such as rectangular spiral structure, bow-tie loading, and back cavity structure optimization during the antenna design process can miniaturize antenna size and optimize voltage standing wave ratio (VSWR) characteristics. Model calculation and experimental data measured in the laboratory show that the antenna possesses a good radiating performance and a multiband property when working in the ultrahigh frequency (UHF) band. A comparative study between characteristics of the designed antenna and the existing quasi-TEM horn antenna was made. Based on the GIS defect simulation equipment in the laboratory, partial discharge signals were detected by the designed antenna, the available quasi-TEM horn antenna, and the microstrip patch antenna, and the measurement results were compared.

Design of an ultra-wideband dielectric-filled TEM-horn antenna

2006 ◽  
Author(s):  
Guo Chen ◽  
Zhang Anxue ◽  
Jiang Yansheng ◽  
Wang Wenbing ◽  
Gao Jinghuai
Keyword(s):  
Horn Antenna ◽  
Ultra Wideband ◽  
Tem Horn

A Novel Compact UWB Monopole Antenna with Bluetooth and Triple Notch Band

Frequenz ◽  
2013 ◽  
Vol 67 (1-2) ◽  
pp. 1-5
Author(s):  
Li Li ◽  
Zhi-Li Zhou ◽  
Jing-Song Hong
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Rectangular Slot ◽  
Feed Line ◽  
Notch Band ◽  
Directional Radiation ◽  
Compact Size ◽  
Current Area

AbstractA novel technique to add an extra Bluetooth band and triple notch bands simultaneously to a compact ultra-wideband (UWB) monopole antenna is presented. This scissors-shaped UWB antenna, covering 2.9 GHz–12.5 GHz, is fed by a special microstrip line. To create an extra Bluetooth band centered at 2.45 GHz, an arc-shaped stub is attached to the high concentrated current area right of the feed line and a rectangular slot is etched in the radiation patch. Besides, a notch band for WLAN (5.6 GHz–6.15 GHz) is also obtained. In addition, by connecting two asymmetric stubs to the feed line, two other notch bands in 3.28 GHz–3.8 GHz for WiMAX and 7.1 GHz–7.76 GHz for downlink of X-band satellite communication systems are achieved. The proposed antenna with compact size of 20 mm × 26 mm is fabricated and measured, showing stable antenna gain and good omni-directional radiation patterns in H-plane.

Research on Ultra-Wideband TEM Horn Antenna and its Miniaturization

2013 ◽  
Vol 441 ◽  
pp. 162-165
Author(s):  
Ying Suo ◽  
Wei Li ◽  
Li Qing Wang ◽  
Qun Wu
Keyword(s):  
Simple Structure ◽  
Simulation Analysis ◽  
Dielectric Material ◽  
Design Method ◽  
Horn Antenna ◽  
Ultra Wideband ◽  
Simulation And Experiment ◽  
Wideband Radar ◽  
And Performance ◽  
Tem Horn

TEM horn antenna is one kind of directional Ultra-wideband antenna with simple structure. Based on the design method of TEM horn antenna, satisfied impedance and radiation character are obtained by simulation and experiment research. On this basis, by means of metal ridged loaded, background dielectric material loaded and distributed lossy metal loaded respectively, the miniaturization character is realized. The simulation analysis results show that load of traditional TEM horn antenna can get efficiently improvement in structure and performance which have widely application foreground in pulse radiation communication system and ultra-wideband radar system.

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