A Compact Low-Loss Multilayer SIW Diplexer at K/Ka-Band

Sieganschin, Anton; Jaschke, Thomas; Mitto, Hans K.; Lamann, Nadja J.; Waldhelm, Jan; Jacob, Arne F.

doi:10.23919/gemic.2019.8698160

Cited by 11 publications

(3 citation statements)

References 7 publications

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“…The traditional suspended microstrip/stripline has been used to implement microwave filters [1,2], resonator [3], and oscillators [4], et al, however, the further applications of this kind of circuits have many difficulties because of the obvious drawbacks of large circuit size and heavy weight, which is dominantly due to the metal cavity. In communication systems, multilayer circuits [6,7,8] have been paid more and more attention because of the vertical integration capabilities even for system-on-package. Recently, multi-layer substrate integrated suspended line (SISL) circuit [7] has been realized by using common PCB technique to overcome the disadvantages of the traditional suspended line circuits.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Implementation of Self-Packaged Multi-Layer Suspended Coplanar Waveguide and its Applications in Filtering Circuits

Xiao

Zhang

2022

IEEE Access

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In this paper, ideal suspended coplanar waveguide model is analyzed by using conformal mapping method, and the characteristic impedance is formulated and verified. A self-packaged suspended coplanar waveguide (SCPW) using multi-layer PCB technique is proposed and implemented with a experimental insertion loss of no more than 0.5dB, and return loss of better than 15.8dB from DC to 10GHz, which eliminates the drawbacks of the traditional suspended circuits such as bulky size, heavy weight and difficult to be integration because of their indispensable metal cavity and mechanical assemble. Both selfpackaging and inside/outside end connection are used to reduce the wave leakage. Based on the selfpackaged multi-layer suspended coplanar waveguide, a high frequency selective and high isolated multiresonator coupled diplexer with measured isolation of no less than 42.5dB, and out-of-band suppression of more than 37dB as well as multiple transmission zeros have been implemented. A reflectionless bandstop filter with a measured S11 attenuation of more than 13.8dB is also implemented for demonstrating the availability of the self-packaged multi-layer SCPW.

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Section: Introductionmentioning

confidence: 99%

Analysis and Implementation of Self-Packaged Multi-Layer Suspended Coplanar Waveguide and its Applications in Filtering Circuits

Xiao

Zhang

2022

IEEE Access

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“…How-ever, they lack scalability and introduce too much complexity for the application of interest. The scalable diplexers in [22] make use of technologies that are too expensive. An interesting approach to reduce the diplexer's size in a more flexible way consists in exploiting a common cavity that replaces the Tjunction [23]- [28].…”

Section: Introductionmentioning

confidence: 99%

Substrate-Integrated-Waveguide Diplexer Filter for SATCOM-on-the-Move

Kapusuz

Ollivier

Noppe

et al. 2021

2021 IEEE MTT-S International Microwave Filter Workshop (IMFW)

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Satellite communication (SATCOM) on-the-move applications require low-cost compact antenna arrays to enable mobile users to track the satellites. Full-duplex operation requires efficient diplexers that satisfy stringent requirements in a compact footprint to enable tight integration within the antenna system. In this contribution, substrate-integrated-waveguide technology is leveraged to design a single-layer third-order diplexer filter based on a dual-mode cavity. Simulations and measurements demonstrate that the diplexer enables full-duplex operation for Ku-band SATCOM on-the-move systems, effectively separating the [11.7-12.75] GHz downlink (Rx) band from the [13.75-14.50] GHz uplink (Tx) band, yielding an isolation larger than 20 dB and an insertion loss below 3.7 dB over a fractional bandwidth (FBW) of 8.6% in Rx and 5.3% in Tx.

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“…Multilayer SIW diplexers [9], [17]- [19] are also research hotspot, which at least contains three layers of dielectric substrates. The main difference between multilayer diplexer and single-layer is that the resonators and filters are distributed on different layers which connected and coupled through vertical holes in multilayer diplexer.…”

Section: Introductionmentioning

confidence: 99%

High-Isolation Diplexer With High Frequency Selectivity Using Substrate Integrate Waveguide Dual-Mode Resonator

et al. 2019

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Two novel substrate integrated waveguide (SIW) high-isolation dual-mode diplexers based on electromagnetic perturbation technology have been presented in this paper. The capacitive perturbation and inductive perturbation have been introduced in the presented dual-mode diplexers. Furthermore, this perturbation can produce two transmission zeros in the real frequency axis, and those transmission zeros in the real frequency axis can improve the frequency selectivity of each channel of the diplexer and the isolation between two channels. Two different SIW dual-mode diplexers have been designed, fabricated, and measured. The measured insertion losses at each center frequency are 2.2 and 2.4 dB for the diplexer 1, 1.8, and 1.5 dB for the diplexer 2, with the fractional bandwidths of 1.95% and 2.08% for the diplexer 1 and 1.94% and 2.05% for the diplexer 2. The isolation is greater than 45 dB. Reasonable agreement between the simulated and measured results is achieved for the proposed dual-mode SIW diplexers. INDEX TERMS Diplexer, high isolation, substrate integrated waveguide (SIW), high frequency selectivity, dual-mode resonator.

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A Compact Low-Loss Multilayer SIW Diplexer at K/Ka-Band

Cited by 11 publications

References 7 publications

Analysis and Implementation of Self-Packaged Multi-Layer Suspended Coplanar Waveguide and its Applications in Filtering Circuits

Analysis and Implementation of Self-Packaged Multi-Layer Suspended Coplanar Waveguide and its Applications in Filtering Circuits

Substrate-Integrated-Waveguide Diplexer Filter for SATCOM-on-the-Move

High-Isolation Diplexer With High Frequency Selectivity Using Substrate Integrate Waveguide Dual-Mode Resonator

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