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[IEEE TENCON 2019 - 2019 IEEE Region 10 Conference (TENCON) - Kochi, India (2019.10.17-2019.10.20)] TENCON 2019 - 2019 IEEE Region 10 Conference (TENCON) - Anchor-shaped slot antenna with Substrate Integrated Waveguide for V-band Applications

摘要： Substrate integrated waveguide (SIW) based on slot antenna is projected for V-band applications and Rogers RT/duriod 5880 substrate used to build up the antenna. The anchor shaped slot is etched on top side of an antenna to improve the bandwidth. The proposed antenna is designed, fabricated, measured and validated. The measured impedance bandwidth is 5.3GHz (ranges from 57 to 62.3GHz) and resonates at two frequencies 57.96GHz, 61.16GHz respectively and also pragmatic good radiation pattern, that is well suited to operate in wireless communications.

关键词： Substrate Integrated Waveguide (SIW),Wireless LAN (WLAN),Gigabit Fidelity (GIFI),Anchor slot

更新于2025-09-16 10:30:52
[IEEE 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA) - Granada, Spain (2019.9.9-2019.9.13)] 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA) - On the Techniques to Design 3D-Printable Arbitrarily Height-Modulated Substrate Integrated Waveguide Filters

摘要： A novel modelling technique to design microwave 3D-printable ?lters based on arbitrarily height-modulated substrate integrated waveguides (SIW) is presented in this paper. In the literature, different topologies have been already employed to design ?lters based on SIW. Nevertheless, none of these solutions have analyzed the behavior of the modulation of the height of the ?lters. This is due to the dif?culty of manufacturing the prototypes with conventional procedures. In this paper, the techniques to design and manufacture these ?lters, provided with microstrip transitions for their validation, are presented.

关键词： 3D-printing,simulations,?lter,modelling,substrate integrated waveguide (SIW)

更新于2025-09-16 10:30:52
[IEEE 2019 14th European Microwave Integrated Circuits Conference (EuMIC) - Paris, France (2019.9.30-2019.10.1)] 2019 14th European Microwave Integrated Circuits Conference (EuMIC) - Tune-All Substrate-Integrated-Waveguide (SIW) Bandpass Filters

摘要： This paper reports on a new type of substrate-integrated-waveguide (SIW) bandpass filters (BPFs) with multiple levels of transfer function adaptivity. They are based on series-cascaded in-line coaxial resonators and a coaxial-resonator-based transmission-zero (TZ) generation section. The proposed architecture allows the realization of the following reconfigurable characteristics: i) tunable center frequency with either constant absolute bandwidth (BW) or constant fractional bandwidth (FBW), ii) tunable BW, and iii) an intrinsically switched-off response. Alternative realization schemes using parallel and series resonators are discussed with the purpose of improving the stopband performance. For proof-of-concept demonstration purposes an L-band SIW-based BPF prototype was designed, manufactured and measured. It exhibited the following RF performance characteristics. Center frequency tuning between 1.24 and 1.8 GHz (1.5: tuning ratio), BW tuning between 190 and 78 MHz (2.44:1 tuning ratio) and intrinsic switching-off with > 30 dB of isolation in the range between 0.75 and 2.25 GHz.

关键词： band-pass filter (BPF),cavity filter,reconfigurable filter,tunable frequency,tunable filter,tunable bandwidth,substrate-integrated-waveguide (SIW) filter

更新于2025-09-16 10:30:52
An Effective Mixed Extracting Method for Electromagnetic Parameters of Periodically Loaded Substrate Integrated Waveguide Units and Its Applications

摘要： In this article, we propose an effective mixed extracting method for anisotropic constitutive parameters of periodically loaded substrate integrated waveguide (SIW). This method takes the advantage of both scattering parameters retrieval theory and the equivalent homogeneous medium dispersion analysis, which could accurately and effectively extract the equivalent constitutive parameters of the periodically loaded SIW. With this method, the corresponding constitutive parameters of the six typical patterns of periodically loaded SIW schemes are accurately extracted, veri?ed, explained, and compared for their performance. It can be used to quantitatively predict the miniaturization potential of each unit cell and sequentially evaluate the performance as an integrated component. In addition, in terms of application, with the aid of equivalent parameters extracted by the proposed method, a slow-wave SIW evanescent mode ?lter centered at 12.64 GHz with a frequency bandwidth of 300 MHz is synthesized, fabricated, and measured. In the meanwhile, the theory of slow-wave evanescent mode ?lter is further consummated, by introducing the dual factors of enhanced permittivity and permeability, as well as analyzing respective advantages in ?lter synthesis. Measurements and simulation results show good agreement, which embodies the role of the method in guiding the design of actual microwave devices.

关键词： periodic loading,substrate integrated waveguide (SIW),Electromagnetic parameters,slow-wave structures,evanescent mode ?lter

更新于2025-09-16 10:30:52
Substrate integrated waveguide based cavitya??backed selfa??triplexing slot antenna for Xa??Ku band applications

摘要： A planar substrate integrated waveguide (SIW) based cavity-backed self-triplexing slot antenna is proposed for X-Ku band applications. The antenna comprises of the SIW cavity, radiating slots, and feeding networks. The radiating slots; that are etched on the upper metallic plane of the SIW, are backed up by the three radiated quarter cavities (QCs). The radiating slots in the respective QCs are of different lengths, excited by three separated orthogonal feed lines to resonate at three different frequencies as 11.01, 12.15, and 13.1 GHz. By fine-tuning the antenna parameters, an intrinsic input port isolation of better than 26 dB is realized which helps in achieving the self-triplexing property. The behaviors of individual cavity modes at three resonant frequencies are explained with the help of Z-parameter. The proposed antenna layout is easy to integrate with the planar circuit. The proposed antenna is fabricated and measured results display a close concern with the simulated results. Moreover, a unidirectional radiation pattern and gain of 5.1, 5.54, and 6.12 dBi at resonant frequencies are realized.

关键词： quarter cavities (QCs),self-triplexing slot antenna,isolation,substrate integrated waveguide (SIW),cavity-backed

更新于2025-09-16 10:30:52
[IEEE 2019 IEEE 2nd International Conference on Electronics Technology (ICET) - Chengdu, China (2019.5.10-2019.5.13)] 2019 IEEE 2nd International Conference on Electronics Technology (ICET) - Compact Substrate Integrated Waveguide Bandpass Filter with Back-to-Back Dual-G-Shaped Stepped Impedance Resonator

摘要： A compact substrate integrated waveguide bandpass filter (SIW-BPF) with back-to-back dual-G-shaped stepped impedance resonator (DGS-SIR) pair is proposed. The DGS-SIR is etched on the top layer of the SIW. As a result, the proposed SIW-BPF loaded by DGS-SIR supports forward-wave propagation below the cutoff frequency of the SIW. Moreover, two transmission zeros (TZs) are generated in both sides of the passband. Consequently high selectivity, sharp roll-off, and compact size have been achieved. To validate the proposed design concept a compact SIW-BPF with DGS-SIR operating at 3 GHz has been designed and fabricated using microstrip and printed circuit board (PCB) technology. The measured results are in good agreement with the full-wave simulated results.

关键词： dual-G-shaped stepped impedance resonator (DGS-SIR),substrate integrated waveguide (SIW),compact,bandpass filter (BPF)

更新于2025-09-16 10:30:52
[IEEE 2019 IEEE/MTT-S International Microwave Symposium - IMS 2019 - Boston, MA, USA (2019.6.2-2019.6.7)] 2019 IEEE MTT-S International Microwave Symposium (IMS) - Highly Configurable Cylindrical-Resonator-Based Bandpass Filter Built of Silica-Based Post-Wall Waveguide and Its Application to Compact E-Band Hybrid-Coupled Diplexer

摘要： This paper presents a compact and low-profile bandpass filter (BPF) built of silica-based post-wall waveguide. The BPF adopts direct-coupled resonator filters based on cylindrical resonators. The filter is highly configurable in shape and allows flexible and compact design. A compact E-band hybrid-coupled diplexer is presented as an application. The dimensions of the BPF and diplexer are 4.0×4.0 mm2 and 9.4×9.9 mm2, respectively. The insertion loss of the lower passband of the diplexer is 1.52 dB at 72.9 GHz and that of the higher passband is 2.0 dB at 82.8 GHz

关键词： millimeter wave devices,short-slot coupler,Substrate integrated waveguide (SIW),band-pass filters,diplexer

更新于2025-09-16 10:30:52
[IEEE 2019 IEEE/MTT-S International Microwave Symposium - IMS 2019 - Boston, MA, USA (2019.6.2-2019.6.7)] 2019 IEEE MTT-S International Microwave Symposium (IMS) - Continuously-Tunable Substrate Integrated Waveguide Bandpass Filter Actuated by Liquid Metal

摘要： An elegant continuously-tunable bandpass ?lter with a wide tuning range based on liquid metal is presented. The ?lter is realized using square substrate integrated waveguide cavity resonators, capacitively loaded with liquid metal posts at the center of the resonators. By changing the height of the liquid metal posts, and hence altering the loading capacitances, the resonant frequencies of the resonators are continuously tuned. To prove the concept, a second order bandpass ?lter is realized and measured. Measurements con?rm the wide range tunability of the ?lter. This demonstrates that liquid-metal, continuous tuning is a promising mechanism for future frequency-agile ?lter applications.

关键词： Liquid metal,continuous tuning,substrate integrated waveguide (SIW),tunable resonator,evanescent-mode cavity

更新于2025-09-16 10:30:52
[IEEE 2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) - Qingdao, China (2019.9.18-2019.9.20)] 2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) - Design of Hollow Waveguide to Substrate Integrated Waveguide Transition in Multi-layer Substrate

摘要： Substrate Integrated Waveguide (SIW) is a low loss transmission line which can be used to connect an antenna to a backed RF circuit in the millimeter wave band. A multi-layer substrate is effective to integrate RF circuits and antennas. Therefore, a transition between a hollow waveguide and a SIW in multi-layer substrate is necessary. However, reflection loss generates at the connections between the hollow waveguide and the SIW in each layer. In this study, a back short and window structures are proposed to use for matching circuit in the transition. Transitions from hollow waveguide to SIWs in multi-layer substrate were designed for low loss over wide bandwidth.

关键词： Substrate Integrated Waveguide (SIW),millimeter wave band,multi-layer substrate,transition

更新于2025-09-12 10:27:22
[IEEE 2019 49th European Microwave Conference (EuMC) - Paris, France (2019.10.1-2019.10.3)] 2019 49th European Microwave Conference (EuMC) - A 2 × 3 Hybrid Substrate Integrated Waveguide Coupler Applied to Beamforming Network

摘要： A 2 × 3 substrate integrated waveguide (SIW) H-plane hybrid coupler operating at 28 GHz with constant phase shifting outputs is proposed. This proposed 6-port hybrid junction coupler can equally divide the input power into the three output ports, with a constant relative phase difference +120?, 0?, ?120?. Simulation results indicate that within 5% relative bandwidth, our designs achieve a good impedance matching with high isolation, and equal power division having constant phase shifting.

关键词： hybrid coupler,six-port junction,H-plane directional coupler,substrate integrated waveguide (SIW),millimeter-wave techniques

更新于2025-09-12 10:27:22

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