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Journal ArticleDOI

Design of Wideband Microstrip to SICL Transition for Millimeter-Wave Applications

01 Jan 2020-IEEE Access (Institute of Electrical and Electronics Engineers (IEEE))-Vol. 8, pp 4250-4254
TL;DR: Two triangular slots in the top ground plane are utilised to compensate for the discontinuity arising at the microstrip-SICL junction & minimize reflections over a wide bandwidth.
Abstract: In this communication, the design and working principle of a wideband microstrip to substrate integrated coaxial line (SICL) planar transition for millimeter-wave applications is presented. In the proposed work, along with tapering of microstrip line, two triangular slots in the top ground plane are utilised to compensate for the discontinuity arising at the microstrip-SICL junction & minimize reflections over a wide bandwidth. To confirm the theoretical claims, the proposed microstrip to SICL transition is fabricated using standard multilayer PCB process. The measured results of the prototype indicate return loss better than 14 dB with a maximum insertion loss of 1.78 dB for DC to 40 GHz band (19 dB bandwidth up to 20 GHz with insertion loss less than 0.71 dB). The modeling of proposed transition is presented & versatility of the design is illustrated for different dielectric constant & thickness. Effortless integration of SICL with the widely used microstrip transmission line simplifies the feeding process of SICL based broadband antennas & microwave circuits.

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Citations
More filters
Journal ArticleDOI
TL;DR: Three experimental prototypes devised for SICR based triple-mode bandpass filters designed for inline-formula with fractional bandwidth more than 23% demonstrate multiple transmission zeros for good selectivity and out-of-band rejection with low insertion loss in a compact form factor.
Abstract: This communication presents substrate integrated coaxial resonator (SICR) based triple-mode bandpass filters designed for $K_{u}$ -band. A self-shielded SICR based third-order filter is realized using two planar coaxial resonators (SICR) embedded in a substrate integrated waveguide cavity (SIW). Merging the TEM based mode of two SICR’s with TE101 mode of SIW significantly enhances the bandwidth in a compact size. A novel topology realized using short circuited metallic via connecting to the top conducting plane through a metal strip demonstrates high degree of flexibility in positioning the transmission zeros to improve the selectivity as well as extend the out-of-band rejection of proposed filter. The three experimental prototypes devised for $K_{u}$ -band with fractional bandwidth more than 23% demonstrate multiple transmission zeros for good selectivity and out-of-band rejection with low insertion loss in a compact form factor.

17 citations


Cites background from "Design of Wideband Microstrip to SI..."

  • ...In [17], a microstrip to SICL planar transition working up to 40 GHz has been presented....

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Journal ArticleDOI
TL;DR: In this article, a three-dimensional ground coplanar waveguide (3D-GCPW) structure is proposed as a broadband planar transition between the conventional GCPW and substrate integrated coaxial line (SICL).
Abstract: In this letter, a three-dimensional ground coplanar waveguide (3D-GCPW) structure is proposed as a broadband planar transition between the conventional GCPW and substrate integrated coaxial line (SICL). The proposed 3D-GCPW contains a 3-D central conductor constructed by two copper layers which are connected together by metallized blind vias and two side ground planes. Its characteristic impedance is mainly determined by the width of the 3-D central conductor and the gap to the side ground plane; thus, the requirement for machining accuracy of metallized blind vias in 3D-GCPW can be reduced during the machining process. A back-to-back structure of the 3D-GCPW transition is fabricated by a multilayer printed circuit board (PCB) process and measured to validate the good performance. The experimental results show that the proposed 3D-GCPW transition exhibits a reflection coefficient less than −10 dB and an acceptable insertion loss within dc to 42 GHz, making it promising for high-performance multiple-channel transceiver or massive integrated applications.

9 citations

Journal ArticleDOI
TL;DR: In this article, a dual-mode substrate integrated coaxial line (SICL) bandpass filter supporting single-band and dual-band operation for widely spaced passbands located in X and K ‐ band is proposed.
Abstract: In this work, a dual‐mode substrate integrated coaxial line (SICL) bandpass filter supporting single‐band and dual‐band operation for widely spaced passbands located in X and K ‐ band is proposed. Firstly, a cavity conceived with shorted half‐wavelength SICL line is investigated. For enhanced miniaturization, a new SICL cavity is developed from the short‐circuited half‐wavelength SICL line which is bisected along the fictitious magnetic wall to derive its half‐mode and quarter‐mode counterparts. A fully shielded compact dual‐mode dual‐band filter is realized by coupling two quarter‐mode cavities. The proposed SICL based filter realized using standard PCB fabrication process demonstrates ease of design and enhanced flexibility in exciting the higher order mode to attain the second‐passband. The experimental results indicate widely spaced passbands with 3‐dB bandwidth of 3.18 GHz and 0.27 GHz centered at 9.61 GHz and 19.12 GHz, respectively. The proposed compact SICL based quarter‐mode filter occupies only 0.15 λg2 lateral area.

2 citations

Proceedings ArticleDOI
12 Dec 2022
TL;DR: In this article , a transition optimization for vertical launch solder-less compression mount connector to substrate integrated coaxial lines (SICL) transition up to K and Ka bands is presented up to
Abstract: A transition optimization for vertical launch solder-less compression mount connector to substrate integrated coaxial lines (SICL) transition is presented up to K and Ka bands. The design for the coaxial-to-SICL transition is delineated while emphasizing on the key design parameters considering fabrication feasibility using printed circuit board (PCB) technology. Through full-wave simulations, an improvement of 1.07 dB in the insertion loss exhibited by the coaxial-to-SICL transition is demonstrated by using an array of plated through hole Vias in the vicinity of the transition. Furthermore, potential causes of performance degradations due to imperfect ground connections and SICL bending due to compression are considered. It is shown that SICL bending minimally impacts the performance, however, inadvertent effects such as an air gap may prominently impact the connector performance.
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
Book
01 Jun 1965
TL;DR: This paper presents a meta-modelling architecture for waveguiding systems that automates the very labor-intensive and therefore time-heavy and expensive process of designing and installingWaveguiding Systems.
Abstract: Chapter 1: Introduction Chapter 2: Electromagnetic Theory Chapter 3: Transmission Line and Waveguides Chapter 4: Circuit Theory for Waveguiding Systems Chapter 5: Impedence Transformations and Matching Chapter 6: Passive Microwave Devices Chapter 7: Electromagnetic Resonators Chapter 8: Periodic Structures and Filters Chapter 9: Microwave Tubes Chapter 10: Solid State Amplifiers Chapter 11: Parametric Amplifiers Chapter 12: Oscillators and Mixers Appendix One: Useful Relations from Vector Analysis Appendix Two: Bessel Functions Appendix Three: Conformal Mapping Techniques Appendix Four: Physical Constants and Other Data

3,934 citations


"Design of Wideband Microstrip to SI..." refers background in this paper

  • ...For enhanced functionality of the system, hybrid integration of various transmission lines is often necessary [1]....

    [...]

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


"Design of Wideband Microstrip to SI..." refers background in this paper

  • ...Novel technologies in planar form have emerged for efficient design of microwave/millimeter-wave circuits [3]–[5]....

    [...]

  • ...In [3], planar counterpart of waveguide has been extensively utilized to develop various microwave circuits and antennas....

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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


"Design of Wideband Microstrip to SI..." refers background or methods in this paper

  • ...Novel technologies in planar form have emerged for efficient design of microwave/millimeter-wave circuits [3]–[5]....

    [...]

  • ...mode TE10 which is shown below fTE10 [5]....

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  • ...A newer technology to synthesize the traditional coaxial line in planar form was devised in [5], namely substrate integrate coaxial line (SICL)....

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Journal ArticleDOI
TL;DR: In this article, a transition from substrate integrated suspended line (SISL) to conductor backed coplanar waveguide (CBCPW) is proposed, which eliminates the drawbacks of the traditional suspended circuits and integrates the suspended circuits effectively.
Abstract: A novel transition from substrate integrated suspended line (SISL) to conductor backed coplanar waveguide (CBCPW) is proposed in this letter. The proposed transition utilizing the standard PCB techniques eliminates the drawbacks of the traditional suspended circuits and integrates the suspended circuits effectively. The new transition is a self-packaged system verified by both simulation and experiment results. Back-to-back transition structure has insertion loss of less than 0.6 dB and return loss of better than 15 dB from dc to 8 GHz.

44 citations


"Design of Wideband Microstrip to SI..." refers methods in this paper

  • ...A novel methodology to interconnect substrate integrated suspended line with coplanar waveguide is shown in [4]....

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Journal ArticleDOI
Qi Wu1, Haiming Wang1, Chen Yu1, Xiaowei Zhang1, Wei Hong1 
TL;DR: In this paper, a dual-band dual-circularly polarized (CP) antenna fed by a dualband 3dB substrate integrated coaxial line coupler is designed, fabricated, and measured.
Abstract: A dual-band dual-circularly polarized (CP) antenna fed by a dual-band 3-dB substrate integrated coaxial line coupler is designed, fabricated, and measured. The proposed antenna is excited by two planar L-probes that are connected to two output ports of the coupler. This dual-band dual-CP antenna effectively covers the L-band of 1.62 GHz and S-band of 2.50 GHz, respectively. Simulation and measurement results show that, considering reflection coefficient, gain, and axial ratio together, the relative bandwidth is about 10% at the lower band and about 4% at the upper band. The maximum measured antenna gains are 8.5 and 8.2 dBi, respectively.

29 citations


"Design of Wideband Microstrip to SI..." refers background in this paper

  • ...This structure also referred as fenced stripline [7], [8] supports low loss at millimeter-wave frequency and prohibits propagation of undesired parallel plate mode....

    [...]