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Proceedings ArticleDOI

Asymmetric dual mode band-pass filter design using Substrate Integrated Hexagonal Cavity(SIHC)

TL;DR: In this paper, a dual-mode bandpass filter with asymmetric passband response is presented, which has passband insertion loss of 0.65 dB and fractional bandwidth of 5.1% at X-band.
Abstract: This paper presents a dual-mode bandpass filter with asymmetric passband response. Hexagonal shaped Substrate Integrated Cavity (SIHC) has been used to implement the proposed filter. Perturbation technique has been used to realize this bandpass response. The filter has four poles and one transmission zero introduced at the left of the passband. The design has passband insertion loss of 0.65 dB and fractional bandwidth of 5.1% at X-band.
Citations
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Book ChapterDOI
01 Jan 2021
TL;DR: In this paper, a semi-hexagonal half-mode SIW antenna is proposed by splitting the SIW cavity along the diametric bisector joining the opposite vertices, which exposes the radiating edge, while the other edges are lined with metallic vias.
Abstract: In this paper, a semi-hexagonal half-mode SIW antenna is proposed by the authors, generated by splitting the hexagonal SIW cavity along the diametric bisector joining the opposite vertices, which exposes the radiating edge, while the other edges are lined with metallic vias. The proposed antenna, designed on Arlon AD270 substrate, has a gain of 5.8 dBi at 5.9 GHz. The antenna element is further used to design two linear arrays as 1 × 2 and 1 × 4 arrays. The resonating frequencies for both 1 × 2 and 1 × 4 simulated linear arrays lie at 5.9 GHz, with gains of 8.3 dBi and 11.3 dBi respectively, thereby providing a gain improvement of 2.5 dBi and 5.5 dBi over the single array element. The antennas are of useful application in vehicular communication systems serving as an integral part of Dedicated Short Range Communication devices with frequency of operation lying in the IEEE 802.11p band allocated for such purpose. The antennas also find application in satellite communication in the C-band.

1 citations

Journal ArticleDOI
TL;DR: In this paper, the authors proposed semi-hexagonal half-mode integrated waveguide (SIW) antennas generated by splitting the hexagonal SIW cavity across two different lines of symmetry, type 1: the diametric line the joining the opposite vertices of the cavity and type 2: the line connecting the opposite edge centers of the cavities.
Abstract: In this paper, the authors have proposed semi-hexagonal half-mode Substrate Integrated Waveguide (SIW) antennas generated by splitting the hexagonal SIW cavity across two different lines of symmetry, type 1: the diametric line the joining the opposite vertices of the cavity and type 2: the line connecting the opposite edge centers of the cavity. The resultant line of separation exposes the radiating edge of the antennas, with the other edges lined with hollow metallic cylindrical vias. The antennas thus designed and fabricated on Arlon AD270 substrate have a gain of 5.8 dBi at the resonating frequency of 5.9 GHz. The proposed antennas are compounded to design linear 1 × 2 and 1 × 4 arrays. The resonating frequencies for both 1 × 2 and 1 × 4 linear arrays of type 1 is 5.9 GHz with respective gain of 8.27 dBi and 11.3 dBi, thereby providing a gain improvement of 2.47 dBi and 5.5 dBi over the single array element. The type 2 linear antenna arrays also resonate at 5.9 GHz for both 1 × 2 and 1 × 4 configurations exhibiting a gain of 8.2 dBi and 11.2 dBi respectively, thus providing a gain improvement of 2.4 dBi and 5.4 dBi over the single array element. The antennas find significant utility in Intelligent Transportation Systems (ITS) for vehicular communication using Cellular-V2X (C-V2X) technology with frequency of operation lying in the allocated IEEE 802.11p band. The antennas also find application in satellite communication in the C-band. The measured results of the fabricated prototype of the antenna arrays are found to bear a close agreement with the simulated ones.

1 citations

Proceedings ArticleDOI
01 Dec 2022
TL;DR: In this paper , a design of SIW filter with cut-off frequency of 14 GHz has been presented, where the Defective Patch Slot (DPS) and Defective Ground Slot(DGS) have been engraved in the top and bottom layer of SIw filter.
Abstract: In this article a design of Substrate Integrated Waveguide filter with cut-off frequency of 14 GHz has been presented. The Defective Patch Slot (DPS) and Defective Ground Slot (DGS) has been engraved in the Top and Bottom layer of SIW filter. This type of SIW structure facilitated with DGS and DPS transformed SIW high pass filter into a Triple Band pass filter with selective bands having centre frequencies of 14.33GHz, 17GHz and 22.12 GHz respectively. For the simulation of results Ansys HFSS Software has been used. The simulated results for the proposed Triple Band SIW filter show all attributes of an efficient band pass filter. The proposed Triple Filter is having a selective Band width as 0.63GHz, 1.71GHz, 1.76GHz respectively. Further, the proposed filter also shows enhanced return loss of −21.44 dB, −21.21dB and −20.37 dB and the insertion loss is not also exceeding −0.5 dB in all three bands. With all the above parameters the proposed filter is quite compact (10mm $\times$ 20 mm) in size making it more suitable for Ku and K band satellite link
Proceedings ArticleDOI
01 Dec 2022
TL;DR: In this paper , a design of SIW filter with cut-off frequency of 14 GHz has been presented, where the Defective Patch Slot (DPS) and Defective Ground Slot(DGS) have been engraved in the top and bottom layer of SIw filter.
Abstract: In this article a design of Substrate Integrated Waveguide filter with cut-off frequency of 14 GHz has been presented. The Defective Patch Slot (DPS) and Defective Ground Slot (DGS) has been engraved in the Top and Bottom layer of SIW filter. This type of SIW structure facilitated with DGS and DPS transformed SIW high pass filter into a Triple Band pass filter with selective bands having centre frequencies of 14.33GHz, 17GHz and 22.12 GHz respectively. For the simulation of results Ansys HFSS Software has been used. The simulated results for the proposed Triple Band SIW filter show all attributes of an efficient band pass filter. The proposed Triple Filter is having a selective Band width as 0.63GHz, 1.71GHz, 1.76GHz respectively. Further, the proposed filter also shows enhanced return loss of −21.44 dB, −21.21dB and −20.37 dB and the insertion loss is not also exceeding −0.5 dB in all three bands. With all the above parameters the proposed filter is quite compact (10mm $\times$ 20 mm) in size making it more suitable for Ku and K band satellite link
References
More filters
Journal ArticleDOI
TL;DR: In this article, the authors provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components, as well as their application in the development of circuits and components operating in the microwave and millimetre wave region.
Abstract: Substrate-integrated waveguide (SIW) technology represents an emerging and very promising candidate for the development of circuits and components operating in the microwave and millimetre-wave region. SIW structures are generally fabricated by using two rows of conducting cylinders or slots embedded in a dielectric substrate that connects two parallel metal plates, and permit the implementation of classical rectangular waveguide components in planar form, along with printed circuitry, active devices and antennas. This study aims to provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components.

1,129 citations

Journal ArticleDOI
TL;DR: In this paper, a planar waveguide elliptic filter with a transmission line inserted inverter is proposed, based on a substrate integrated waveguide, which is fabricated by the standard PCB process.
Abstract: A planar waveguide elliptic filter with a transmission line inserted inverter is proposed. This inline filter based on a substrate integrated waveguide is fabricated by the standard PCB process. Simulated results are compared with measured data and good agreement is reported.

55 citations

Proceedings ArticleDOI
11 Jun 2006
TL;DR: In this paper, the authors proposed several topologies of filters based on Substrate Integrated Circular Cavities (SICC), which works on TM modes and the benefits of this technology are mainly an increased quality factor and a better design flexibility.
Abstract: This paper proposes several topologies of filters based on Substrate Integrated Circular Cavities (SICCs). SICC works on TM modes and the benefits of this technology are mainly an increased quality factor and a better design flexibility. Filters are made from cylindrical cavities integrated into a planar substrate and are fed by microstrip lines through coupling slots. Cavities are inter-coupled by irises. One-order, second-order and third-order filters are presented. Preliminary measurement data are compared to those from simulations performed with a 3-D electromagnetic structure simulator. These filters rely on the SICC concept, whose principle is explained hereafter.

48 citations

Proceedings ArticleDOI
08 Sep 2003
TL;DR: A planar dual-mode filter on the basis of the substrate integrated waveguide (SIW) technique has been proposed and developed in this paper, where microstrip probes are used to excite two modes in an SIW cavity.
Abstract: A planar dual-mode filter on the basis of the substrate integrated waveguide (SIW) technique has been proposed and developed. Microstrip probes are used to excite two modes in an SIW cavity. These modes cancel each other at one frequency to create a transmission zero. Parametric influences in the filter design have been studied. A 26 GHz dual-mode filter has been designed, fabricated and measured. The insertion loss of 0.5 dB is obtained at the center frequency. The return loss is lower than 15 dB.

43 citations

Proceedings ArticleDOI
Xiao-Ping Chen1, Zhangchen Hao1, Wei Hong1, Tie Jun Cui1, Ke Wu1 
12 Jun 2005
TL;DR: In this article, an inline and a folded three-pole dual-mode filters with asymmetric transmission response based on SIW are presented, which are centered at around 9.85 GHz with a transmission zero on the left and right of the passband, respectively.
Abstract: Substrate integrated waveguide (SIW) can be used to implement high Q waveguide components with the same process as planar circuits. In this paper an inline and a folded three-pole dual-mode filters with asymmetric transmission response based on SIW are presented. These two filters, consisting of a TE/sub 102/-TE/sub 301/ dual-mode cavity and a TE/sub 101/ mode cavity, are centered at around 9.85 GHz with a transmission zero on the left of the passband and the right of the passband, respectively. A linear microstrip taper was used to implement the transition between microstrip and SIW. The measurement results agree with simulation results.

32 citations