- 标题
- 摘要
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- 实验方案
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Differentially-Fed Aperture-Coupled Magneto-Electric Dipole Antenna With Continuously Variable Beamwidth
摘要： A beamwidth reconfigurable linear array antenna utilizing three magneto-electric (ME) dipole antenna elements with no need for a complex feeding network is presented. In this design, the ME dipole antenna elements are differentially excited by three parallel transverse resonant slots etched on the broad wall of a substrate integrated waveguide (SIW) cavity. By symmetrically embedding four copper posts that are connected to varactor diodes between the adjacent slots, the electric field perturbation in the SIW cavity can be realized by manipulation of the varactors. In other words, altering bias voltage of all the varactors simultaneously could offer granular control over the excitation amplitude and phase of the antenna elements. Consequently, continuously variable beamwidth of the antenna can be obtained under electronic control. A fully operational prototype was designed, fabricated, and tested to validate the proposed design. Measured results indicate that the overlapped -10 dB impedance bandwidth of the proposed antenna is 19.6% and the half-power beamwidth (HPBW) in the E-plane is capable of varying from 39° to 107° within the operating frequency band.
关键词： Beamwidth reconfigurable antenna,varactor diode,substrate integrated waveguide (SIW),magneto-electric (ME) dipole
更新于2025-09-23 15:19:57
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Compact Printed Log-periodic Dipole Arrays Fed by SIW Horn
摘要： Substrate integrated waveguide (SIW) horn is a good planar feeding structure for planar antennas and arrays. In this letter, a 18 printed log-periodic dipole array (LPDA) antenna fed by a compact SIW horn is presented. Some linear arrays of metal vias are embedded inside the SIW horn to correct the phase and amplitude distributions on the horn aperture. The measured gain of the proposed antenna is 9.61 dBi, the half power beam-width is 18.1, the FTBR is 17.55 dB, the cross polarization in the axis direction is 21.48 dB, and the side-lobe lever is -14.93 dB at 10 GHz. Good agreement between the simulated and the measured results is obtained.
关键词： planar horn,Log-periodic dipole array (LPDA),substrate integrated waveguide (SIW)
更新于2025-09-19 17:15:36
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[IEEE 2019 International Conference on Opto-Electronics and Applied Optics (Optronix) - Kolkata, India (2019.3.18-2019.3.20)] 2019 International Conference on Opto-Electronics and Applied Optics (Optronix) - Substrate Integrated Waveguide based Antenna for IoT Applications
摘要： In this paper, substrate integrated waveguide (SIW) compact antennas are presented as sensors to operate in the IEEE C-band. The main sensor is a SIW antenna designed at a frequency of 5.8 GHz for IEEE 802.11 WLAN application. The antenna has triangular patch and metallic vias along the edge thereby making it a conductive wall and hence a perfect electrical conductor (PEC) while absence of vias on the other side makes it a perfect magnetic conductive (PMC) wall. The antenna radiates linearly polarized wave corresponding to TM010 mode with a corresponding gain of 4.21dBi. The SIW designs are simulated using Arlon AD270 substrate as a dielectric and the simulated results have been obtained.
关键词： Substrate Integrated Waveguide (SIW),C band,IEEE 802.11,wireless local area network(WLAN)
更新于2025-09-19 17:13:59
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Compact Beam Scanning Flat Array Based on Substrate Integrated Waveguide
摘要： A compact beam scanning flat antenna array with high gain based on the substrate integrated waveguide (SIW) is presented in this paper. The radiation elements are the continuous transverse stub (CTS) constructed by SIW, which are arrayed on the substrate. The SIW-CTS array has a 4 dB higher gain than the traditional CTS array with the metal parallel plate waveguide and is analyzed. A new compact the theoretical explanation corporate-feed network consisting of a SIW horn and a flat lens is also proposed. The flat lens could convert the cylindrical wave-front generated by the feed probe and the SIW-horn to a planar wave-front for feeding the CTS array. The Taylor distribution of the feed level made the array has a low sidelobe and high gain. The beam scanning of the array could be realized by simply moving the small SIW-horn along the line across the focal point. An 8-element array is designed, simulated and fabricated to verify the design. The measured results show that the scanning range is from -35° to 35° with the highest gain of being 20.6dBi and the side lobe level of -25.2dB at the broadside.
关键词： beam scanning,flat array,substrate integrated waveguide (SIW),Continuous transverse stub (CTS)
更新于2025-09-19 17:13:59
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[IEEE 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Chicago, IL, USA (2019.6.16-2019.6.21)] 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Rapid Recovery of CIGS Solar Cells from PID Stress with Light Soaking
摘要： This paper presents a substrate integrated waveguide Butler matrix with a modi?ed hybrid coupler, operating from 28 to 32 GHz. The modi?ed hybrid coupler is realized by using 90? hybrid coupler followed by a ?45? compensating phase shifter. Thus, 45?/135? output phase differences can be obtained using this type of coupler. Compared with the equal-length unequal-width phase shifter, the compensating phase shifter exhibits better phase characteristics, with only 3? phase error over 28–32 GHz. Because the phase of compensating phase shifter is not realized by taking the phase introduced by the crossover as a reference, it gives great ?exibility to the design of compensating phase shifter. Adopting the modi?ed hybrid coupler, the designed Butler matrix features the output phases with peak to peak error of 13? and wideband performance from 28 to 32 GHz. The slot array fed by the Butler matrix can radiate four slanted beams with acceptable measured gains, in the range of 9.7～12 dBi for port 1 excitation and 8.4～11.1 dBi for port 2 excitation. The radiated beams can reach a wide azimuthal coverage between ±61?.
关键词： Butler matrix,Modi?ed hybrid coupler,substrate integrated waveguide (SIW),compensating phase shifter,slot array antenna
更新于2025-09-19 17:13:59
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Dual-band substrate integrated waveguide dual-dumbbell-shaped-slot-fed patch antenna
摘要： A dual-band low-profile substrate integrated waveguide (SIW) dual-dumbbell-shaped-slot-fed (DDSSF) patch antenna is presented in this letter. The antenna is designed using the dual-dumbbell-slot feeding structure in SIW and two patches to radiate. And it achieves two passbands by exciting two modes of dual dumbbell-shaped slots (DDSSs). The first impedance bandwidth is 4.1%, the second one is 10.0% and gains up to 6.7 dBi and 7.4 dBi, respectively. Furthermore, the two bands can be separated from each other and the cross-polarization level is below ?30 dB. The simulation and measurement results of the proposed antenna are in good agreements.
关键词： slot,substrate integrated waveguide (SIW),dumbbell-shaped,dual-wide-band,low cross-polarization
更新于2025-09-19 17:13:59
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Substrate Integrated Waveguide Multi-Channel Filtering Crossover With Extended Channel Number and Controllable Frequencies
摘要： In this brief, substrate integrated waveguide (SIW) multi-channel filtering crossovers are proposed for two sets of intersecting signals operating at the same or different frequencies. The number of filtering channels in two directions can be independently extended. Square SIW cavities with TE102 and TE201 modes are used as building blocks. By properly arranging feeding ports and coupling regions, isolation between different channels is achieved and bandpass responses are integrated. The design procedure can be simplified as that of single-channel bandpass filter. For demonstration, a six- and a five-channel filtering crossovers with the same operating frequency in two directions are designed and fabricated. By etching a slot on the square SIW cavity, the TE102 and TE201 modes are split and thus the frequencies can be controlled. A four-channel filtering crossover with different operating frequencies in two directions is implemented for further verification. Compared to other multi-channel crossovers, the proposed designs feature good inter-channel isolation and intra-channel filtering responses with flexibly extended channel number and controllable frequencies.
关键词： Multi-channel,controllable frequencies,crossover,substrate integrated waveguide (SIW),bandpass responses
更新于2025-09-19 17:13:59
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Single-to-Balanced and Balanced-to-Balanced Dual-channel Filters Using Multilayer Substrate Integrated Waveguide Cavities
摘要： This paper presents a scheme for designing single-to-balanced and balanced-to-balanced dual-channel filters using multilayer substrate integrated waveguide (SIW) cavities. By sharing the common SIW cavities, two single-to-balanced or two balanced-to-balanced filters are flexibly integrated as one dual-channel circuit, resulting in very high integration. The input and output ports are properly arranged to the SIW cavities, where the two modes of the TM110 degenerate modes can be separately excited by the ports of the two filter channels. Moreover, the resonance modes of one channel have no coupling to those of the other channel. Thus, isolation between the two channels is achieved even though the two channels are designed sharing the same SIW cavities. The desired balanced ports are achieved based on the inherent out-of-phase electric field property of the SIW cavity at TM110 degenerate modes. For verification, a six-port single-to-balanced dual-channel filter is implemented, exhibiting excellent single-to-balanced filtering responses of each channel and high isolation between the two channels. By converting the single-ended ports to balanced ports, second-order and third-order balanced-to-balanced dual-channel filters are proposed. Moreover, the proposed designs can also realize different channel bandwidth or channel frequencies to meet different wireless applications.
关键词： dual-channel filter,multiple-input and multiple-output (MIMO),high integration,Single-to-balanced,balanced-to-balanced,substrate integrated waveguide (SIW)
更新于2025-09-19 17:13:59
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Tunable phase shifter in substrate integrated waveguide
摘要： In this paper, A variable substrate integrated waveguide (SIW) phase shifter is presented. The phase shifter is formed by capacitively coupling varactors to a longitudinal slot on a SIW. Compared to other SIW phase shifters, our design is tunable, and only occupies 7.5 mm longitudinal length. Experiment results indicate the device is shown to have up to 60 degrees phase shift in the 5.3–6 GHz range with insertion loss better than 3 dB and return loss generally better than 20 dB.
关键词： substrate integrated waveguide (SIW),varactor,phase shifter
更新于2025-09-19 17:13:59
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[IEEE 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Guangzhou, China (2019.5.19-2019.5.22)] 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - A Novel Power Divider Based on Hybrid Circuit of Surface Plasmon Polaritons and Substrate Integrated Waveguide
摘要： In this paper, a novel power divider based on hybrid circuit of spoof surface plasmon polaritons (SPPs) and substrate integrated waveguide (SIW) is proposed. The hybrid circuit consists of three paths including one input branch (SIW) and two identical output branches (spoof SPPs). The pass-band of the power divider is controllable by designing the geometrical parameters of spoof SPPs and SIW, which is because that spoof SPPs and SIW can adjust the upper and lower cutoff frequencies, respectively. Simulated results demonstrated the characteristics of power dividers, such as highly efficient transmission, low loss, and bandwidth adjustable. The combining of spoof SPPs and SIW provides more potential for the development of the integrated functional devices in microwave frequency.
关键词： spoof surface plasmon polaritons (SPPs),hybrid circuit,substrate integrated waveguide (SIW),power divider,microwave frequency
更新于2025-09-19 17:13:59