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Proceedings ArticleDOI

Substrate Integrated Coaxial Line Excited Wideband Millimeter Wave Bow-Tie Antenna

TL;DR: In this paper, the authors describe the design of a new excitation technique known as the Substrate Integrated Coaxial Line (SICL) technology for bow tie antenna operating in millimeter wave (MM-wave) frequency.
Abstract: This paper describes the design of a new excitation technique known as the Substrate Integrated Coaxial Line (SICL) technology for bow tie antenna operating in Millimeter wave (MM-wave) frequency. Substrate Integrated Coaxial Line provides wide bandwidth for TEM mode of operation. The Bow Tie antenna excited by SICL exhibits a wide 10 dB impedance bandwidth of 8.7 GHz with an average gain of 4.5 dBi in the entire frequency band. One advantage of using this new feeding technique is the elimination of balun as required in the microstrip technology to feed the antenna. Another advantage is the wideband nature of SICL that is difficult to be obtained with its counterpart namely, SIW (Substrate Integrated Waveguide). The end-fire radiation pattern of the proposed antenna shows co-polarization to cross polarization ratio of 13.7 dB at the center frequency. The antenna is suitable for 5G applications at millimeter wave frequencies beyond 24 GHz and applications at LMDS band.
Citations
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Proceedings ArticleDOI
01 Nov 2018
TL;DR: In this article, a 1×2 C-shaped slot antenna array is designed to operate at 29.35 GHz with a gain of 6.6 dBi at 29 GHz.
Abstract: In this paper, SICL based $\pmb{2}\mathbf{x}\pmb{4}$ C-shaped Slot Antenna Array fed by Substrate Integrated Coaxial Line (SICL) working in the millimeter wave frequency band is presented. As a starting point for the design, a 1×2 C-shaped Slot antenna array is designed to be operated at 29.35 GHz with a gain of 6.6 dBi. The proposed $\pmb{4}\mathbf{x}\pmb{2}$ C-shaped Slot Antenna Array exhibits high gain of 10.6 dBi at 29 GHz. The 4 sections of the slot antennas array is fed with in-phase field using a SICL power divider. This makes the complete design compact and low profile. The via section encapsulating the middle conductor strip of the SICL section provides good shielding of the feeding network. The designed antenna array has front to back ratio of 17.4 dB. The antenna is useful in LMDS band and possible 5G applications.

5 citations

References
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Proceedings ArticleDOI
01 Sep 2006
TL;DR: In this article, a Lange coupler with operation bandwidth of 66% was used in a multi-port Impulse Radio for ultra wide band applications. And the same technology results particularly suitable to realize passive components for wideband applications.
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

164 citations


"Substrate Integrated Coaxial Line E..." refers background in this paper

  • ...Also, the wideband nature of the SICL adds to the advantage for its implementation for 5G application that require wide bandwidth particularly in the millimeter wave frequencies [7]-[8]....

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Journal ArticleDOI
TL;DR: In this article, a bow-tie-shaped slot antenna is proposed to induce strong loading effect in the cavity and generate two closely spaced hybrid modes that help to get a broadband response.
Abstract: A novel design technique for broadband substrate integrated waveguide cavity-backed slot antenna is demonstrated in this letter. Instead of using a conventional narrow rectangular slot, a bow-tie-shaped slot is implemented to get broader bandwidth performance. The modification of the slot shape helps to induce strong loading effect in the cavity and generates two closely spaced hybrid modes that help to get a broadband response. The slot antenna incorporates thin cavity backing (height <;0.03λ 0 ) in a single substrate and thus retains low-profile planar configuration while showing unidirectional radiation characteristics with moderate gain. A fabricated prototype is also presented that shows a bandwidth of 1.03 GHz (9.4%), a gain of 3.7 dBi over the bandwidth, 15 dB front-to-back ratio, and cross-polarization level below -18 dB.

152 citations


"Substrate Integrated Coaxial Line E..." refers background in this paper

  • ...Many bow-tie antennas and its modification has been reported in the lower frequency band [4]-[6]....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a coplanar waveguide-to-coplanar strips (CPW-toCPS) balun is used to obtain the balanced feed line for the printed bow-tie.
Abstract: The design of coplanar waveguide (CPW)-fed bow-tie antenna for the 2.4-GHz ISM band is described. A coplanar waveguide-to-coplanar strips (CPW-to-CPS) balun is used to obtain the balanced feed line for the printed bow-tie. An analysis method based on the mixed potential integral equation method is used to characterize the input characteristics of the bow-tie antenna. The numerical results obtained are in good agreement with the experimental data. Through experiments with bow-tie antennas of various extended angles, the bow-tie antenna with a 90/spl deg/ extended angle exhibits the widest bandwidth in the desired frequency band which has a bandwidth of 17% for a VSWR <1.5:1.

111 citations


"Substrate Integrated Coaxial Line E..." refers background in this paper

  • ...Hence, the need to have a balun as in [2], [3] is eliminated completely....

    [...]

  • ...The feeding network for the microstrip dipole antenna consists of CPW-to-CPS balun for the excitation of the antenna [2]....

    [...]

Proceedings ArticleDOI
01 Nov 2017
TL;DR: In this article, a printed bow-tie dipole rectenna which works at frequency of 1.8GHz for RF energy harvesting application is presented. But the rectifier circuit with voltage quadrupler is constructed of diodes and capacitors, which is expected to produce high enough output voltage usable for supplying small power device.
Abstract: This paper presents printed bow-tie dipole rectenna which works at frequency of 1.8GHz for RF energy harvesting application. The proposed rectenna consists of receiver printed bow-tie dipole antenna and rectifier circuit acts as voltage quadrupler. The bow-tie dipole antenna is chosen due to its simply design, wide bandwidth, and low weight. An FR4 epoxy dielectric substrate with the thickness of 1.6mm is used to deploy the bow-tie dipole antenna. Meanwhile, the rectifier circuit with voltage quadrupler which is constructed of diodes and capacitors is expected to produce high enough output voltage usable for supplying small power device. The characterization through simulation and measurement shows that four bow-tie dipole antennas have satisfied the required specification at frequency of 1.8GHz and are producible the output voltage of 65mV–250mV after being rectified and processed into voltage quadrupler.

15 citations


"Substrate Integrated Coaxial Line E..." refers background in this paper

  • ...The requirement of balun in the design of microstrip technology-based bow-tie antenna is inevitable to feed the two arms of the antenna [3]....

    [...]

  • ...Hence, the need to have a balun as in [2], [3] is eliminated completely....

    [...]

Proceedings ArticleDOI
07 Mar 2011
TL;DR: In this article, a modified bow-tie antenna with reduced metallization is presented, where the antenna is mounted on a flexible substrate which is fabricated at the Flexible Display Center (FDC) of Arizona State University (ASU).
Abstract: This paper presents design, simulation, fabrication and measurement of a modified bow-tie antenna with reduced metallization. The antenna is mounted on a flexible substrate which is fabricated at the Flexible Display Center (FDC) of Arizona State University (ASU). The substrate is heat stabilized polyethylene naphthalate (PEN) which allows the antenna to be flexible. The antenna is fed by the aid of a microstrip-to-coplanar feed network balun. The reduction of the metallization is based on the observation that the majority of the current density is confined towards the edges of the regular bow-tie antenna. Hence, the centers of the triangular parts of the bow-tie antenna are removed. The radiation performance of the modified bow-tie is verified to be very close to the conventional bow-tie by simulations and measurements.

14 citations