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Proceedings ArticleDOI

Design of Substrate Integrated Coaxial Line based Broadband Dipole Antenna for Millimeter Wave Application

01 Dec 2018-

AbstractA broadband dipole antenna fed by the Substrate Integrated Coaxial Line (SICL) to work in Local Multipoint Distributed System (LMDS) band is presented in this paper. The feeding network consist of SICL which holds the advantage of eliminating the complex network of balun and reflector in conventional microstrip based feeding designs of planar antennas. The proposed design utilises parasitic dipole in addition to the primary dipole antenna to enhance bandwidth. This antenna exhibits gain varying from 7.2dBi to 8dBi and 19% impedance bandwidth within the range of 25.7GHz to 31.2GHz. This antenna finds its application in LMDS (26GHz-29GHz) systems and millimetre wave applications.

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References
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Proceedings ArticleDOI
01 Sep 2006
Abstract: A novel substrate integrated coaxial line (SICL) is presented and experimentally verified in this paper This structure exhibits unimodal operation over a wide frequency band, is shielded and not dispersive, can be fabricated by using simple, low-cost thin?film process, and can be easily integrated with active devices Moreover, the same technology results particularly suitable to realize passive components for wideband applications The design of a Lange coupler with operation bandwidth of 66%, to be used in a Multi-port Impulse Radio for Ultra Wide Band applications, is reported

112 citations


"Design of Substrate Integrated Coax..." refers background in this paper

  • ...It supports unimodal and non-dispersive operation for wide bandwidth and small size which is one of the essential requirements for 5G millimetre wave systems [3]....

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Journal ArticleDOI
A. Nordbotten1
TL;DR: The LMDS technology, now in its first stage of implementation, is expected to enhance development of broadband services such as e-commerce and tele-teaching and performance relative to other broadband access technologies is discussed.
Abstract: Local multipoint distribution systems (LMDS) represent a new radio-based access technology with cellular architecture offering flexible high-capacity connections to private users and organizations. The systems employ a point-to-multipoint broadcast downlink with a total capacity of 36-38 Mb/s per transport stream, giving high flexibility for inclusion of any type of data. The interactive channel, being a point-to-point connection, may employ different technologies depending on availability and user demand for capacity. This capacity may basically range from a few kilobits per second up to at least 25.6 Mb/s. LMDS performance relative to other broadband access technologies is discussed. A major remaining development task is the establishment and verification of methods for coverage of normally shielded areas. The availability of cheap repeaters and possibly reflectors for increased coverage is a must, which will significantly improve coverage. The LMDS technology, now in its first stage of implementation, is expected to enhance development of broadband services such as e-commerce and tele-teaching.

86 citations


"Design of Substrate Integrated Coax..." refers methods in this paper

  • ...The proposed antenna exhibits endfire radiation pattern with half power beam width (HPBW) of 112 ̊ in E-plane and 50 ̊ in H-plane that meets the requirements of coverage sector of LMDS transmitter as specified in [6]....

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Journal ArticleDOI
Abstract: The design and realization of a dual-band balun-integrated dipole antenna is presented. A new type of dual-band balun is introduced as the feeding network, providing antiphase input signals for the dual-band dipole antenna. The dual-band balun is realized by the aid of a stepped-impedance transformer and tapped open-ended stubs. Combined with this balun, a uni-planar dual-band dipole antenna is designed. An experimental prototype working at 2.45/5.25 GHz are fabricated and measured. The measured performances of the antenna show good return loss and radiation patterns at the two working frequencies, proving the dual-band operation of the proposed dipole antenna.

33 citations


"Design of Substrate Integrated Coax..." refers methods in this paper

  • ...Thereby, the SICL feeding section in itself acts as balun and thus eliminates the need to have a separate complex structure of balun and reflector as used in paper [4]....

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Proceedings ArticleDOI
01 Dec 2017
Abstract: In this paper, design of Substrate Integrated Coaxial Line (SICL) fed printed dipole antenna for Ka band application is demonstrated. The proposed antenna efficiently utilizes the out of phase surface current in the central and outer conductor of the SICL to excite the dipole antenna. The use of SICL removes the need of using balun to feed the dipole antenna and makes the feeding network simpler. The metal plate at the top layer acts as reflector for the dipole antenna which helps to enhance the gain of the antenna upto 5.38 dBi with a broad bandwidth of 2.37 GHz. The antenna is implemented in low profile planar substrate making it suitable for practical application in Ka band.

5 citations


"Design of Substrate Integrated Coax..." refers background in this paper

  • ...The feeding networks for the antenna in planar microstrip technology suffers from spurious radiations and exhibits low efficiency because of dielectric and conductor losses at millimetre wave frequencies [1]....

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  • ...The dimensions of the SICL transmission line that feeds the antenna section is chosen to keep the characteristic impedance 50Ω [1]....

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