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Proceedings ArticleDOI: 10.1109/ECS.2015.7125013

Gain enhancement of MEMS helix antenna using double substrate and fractal structures

18 Jun 2015-pp 757-761
Abstract: This paper is concerned with the design of a novel MEMS helical antenna that is mainly incorporated for Terahertz (THz) applications. The antenna comprises of a metal helix and a CPW feed on the substrate. The antenna can be fabricated using only one wafer and it has high packaging density. For THz applications the antenna parameters has been optimised so that desired performance can be achieved. Moreover low fabrication cost makes this antenna suitable for terahertz systems.

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Topics: Coaxial antenna (68%), Antenna measurement (67%), Antenna factor (67%) ...read more
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Proceedings ArticleDOI: 10.1109/IMWS-AMP.2016.7588385
Lin Guo1, Hongfu Meng2, Lei Zhang1, Jun Ge1Institutions (2)
20 Jul 2016-
Abstract: In this work, a novel design tor a tully on-chip 3D antenna operating at 4 THz that can be fabricated by a novel MEMS (micro electro mechanical systems) technology directly realized on a silicon substrate is presented. The antenna includes two parts, the metallic helix and the microstrip on the substrate for feed. The proposed antenna structure is well suitable designed by MEMS technology, the fabrication of the structure needs only one wafer, and the antenna can be easily integrated with other parts of on-chip circuits. The antenna is characterized by high gain (17.6 dBi) and wide relative bandwidth (44%) from 2.8THz to 4.4THz. There are many tunable parameters of the helix, so that high performance THz antenna can be achieved by optimizing these parameters. The proposed antenna can be manufactured by MEMS processing with low fabrication cost, suitable for many THz systems.

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Topics: Coaxial antenna (67%), Microstrip antenna (67%), Antenna measurement (66%) ...read more

8 Citations


Proceedings ArticleDOI: 10.1109/ICGCIOT.2015.7380643
Indranil Acharya1, Saminur Rahman1Institutions (1)
08 Oct 2015-
Abstract: In this paper, a novel UWB antenna is designed. The antenna exhibits a bandwidth of 9.64 GHz and has a gain of 1.83 dB at 3.5 GHz. Two such antennas are placed at a distance of 36 mm in order to observe strong mutual coupling. Three different methods are adopted for reducing the mutual coupling. Best results were obtained in case of tri-arm stub in which an isolation of more than 20 dB is obtained in the entire UWB range. All the analysis is done in HFSS 14.

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Topics: Directional antenna (59%), HFSS (54%), Stub (electronics) (52%)

1 Citations

References
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Open accessJournal ArticleDOI: 10.1109/LMWC.2005.856690
Jeong-Geun Kim1, Hyung Suk Lee1, Ho-Seon Lee1, Jun-Bo Yoon1  +1 moreInstitutions (1)
Abstract: A 60-GHz coplanar waveguide (CPW)-fed post-supported patch antenna is presented using micromachining technology. In the proposed structure, the radiating patch and the feed line network can be optimized separately with a substrate. The antenna performance is improved by elevating the patch in the air. A patch array antenna is also designed with a simple feed network. The fabricated antenna shows broad band characteristics such as -10 dB bandwidth of 4.3GHz from 58.7GHz to 64.5GHz in the single patch antenna and 8.7GHz from 56.3GHz to 65GHz in 2/spl times/1 patch array antenna.

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Topics: Microstrip antenna (73%), Patch antenna (73%), Coaxial antenna (66%) ...read more

100 Citations


Journal ArticleDOI: 10.1109/74.125884
Abstract: The development of integrated horn antennas since their introduction in 1987 is reviewed. The integrated horn is fabricated by suspending a dipole antenna, on a thin dielectric membrane, in a pyramidal cavity etched in silicon. Recent progress has resulted in optimized low- and high-gain designs, with single and double polarization for remote-sensing and communication applications. A full-wave analysis technique has resulted in an integrated antenna with performance comparable to that of waveguide-fed corrugated-horn antennas. The integrated horn design can be extended to large arrays, for imaging and phased-array applications, while leaving plenty of room for the RF and IF processing circuitry. Theoretical and experimental results at microwave frequencies and at 90 GHz, 240 GHz, and 802 GHz are presented. >

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Topics: Horn antenna (68%), Directional antenna (61%), Parabolic antenna (58%) ...read more

60 Citations


Journal ArticleDOI: 10.1049/EL:20073679
Abstract: A terahertz transverse electromagnetic horn antenna (THz-TEMHA) monolithically integrated on a gallium arsenide substrate has been studied by means of subpicosecond pulses generated and measured on a 50 Omega coplanar waveguide. The measured reflection coefficient is below -10 dB from 100 GHz to about 1 THz. A terahertz ranging experiment was carried out in a monostatic configuration

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Topics: Terahertz time-domain spectroscopy (63%), Terahertz radiation (62%), Horn antenna (59%) ...read more

47 Citations


Proceedings ArticleDOI: 10.1109/APS.2006.1711074
09 Jul 2006-
Abstract: Interest in terahertz science has expanded rapidly in recent years due largely to the advent of new RF components and new fast-pulse optical time domain spectroscopic techniques. The two traditional development communities that border the terahertz gap - optical and microwave, are beginning to converge as we see more wide spread use of terahertz systems. One technology area where both these communities can benefit is in the design and realization of new forms of terahertz antennas and beam forming networks. Both frequency domain and optical time domain techniques make use of single mode, broad band terahertz antennas. However, most existing instruments utilize very simple structures that have been imported from the microwave community. The very special needs of newly proposed terahertz instruments, especially very wide band-width spectroscopy and high resolution imagers, require new antenna concepts and new ways of implementing already established antenna designs. More traditional applications for terahertz systems, in radio astronomy, remote sensing and radar, generally require large diameter, high surface accuracy antenna dishes that can benefit from active surface correction, new light weight materials and compact designs. This paper provides a brief overview of terahertz antenna issues from large scale reflectors to multipixel imaging systems. It is intended as an introduction to a field with both wide breadth and applications that cross many disciplines.

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Topics: Terahertz gap (63%), Terahertz radiation (61%), Antenna (radio) (53%)

46 Citations


Journal ArticleDOI: 10.1016/J.IJLEO.2013.06.016
Lin Guo1, Fengyi Huang1, Xusheng Tang1Institutions (1)
01 Jan 2014-Optik
Abstract: This paper reports the design and analysis of a novel helix antenna based on Micro-electromechanical Systems (MEMS) technology, which is used in terahertz (THz) applications. The structure of the antenna includes two parts, the metallic helix and the coplanar waveguide (CPW) on the substrate for feed, the fabrication of the structure needs only one wafer, and the antenna can be easily integrated with other parts of on-chip circuits. There are many tunable parameters of the helix, so that high performance THz antenna can be achieved by optimizing these parameters. The proposed antenna can be manufactured by MEMS processing with low fabrication cost, suitable for many terahertz systems.

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Topics: Helical antenna (63%), Antenna (radio) (60%), Terahertz radiation (53%) ...read more

42 Citations


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