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半模基片集成波导(HMSIW)是最近刚刚提出的一种微波毫米波平面集成导波结构,具有品质因数高,损耗小,结构紧凑和高集成度等优点.本文基于HMSIW技术和标准印刷电路板(PCB)工艺设计并研制了6 dB、10 dB、15 dB和20 dB四种窄壁缝隙耦合定向耦合器.所设计的定向耦合器在保留与基片集成波导(SIW)定向耦合器性能相同的基础上,将体积减小了近一半.测试结果与Ansoft HFSS商用软件仿真结果基本一致,验证了所设计的定向耦合器具有小型化和性能良好等优点. 相似文献
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基片集成波导(SIW)具有损耗低、性能好、易于集成等优点,作为一种新型的导波技术已经被广泛地用于微波与毫米波电路.但是对于微波低频段,基片集成波导器件的尺寸偏大.最近,一种新的导波结构--半模基片集成波导(HMSIW)被提出.与基片集成波导相比,半模基片集成波导保留了基片集成波导的优点,同时在尺寸上缩小近一半,损耗也更低.本文提出了两种结合半模基片集成波导与基片集成波导技术的三分贝功率分配器,仿真结果与实验结果一致. 相似文献
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设计并研制了一种基于半模基片集成波导(Half-mode Substrate Integrated Waveguide:HMSIW)馈电的单层宽带印刷对数周期偶极子阵列(Printed Log-Periodic Dipole Array:PLPDA)天线.对数周期偶极子阵列(PLPDA)天线具有频带宽、剖面低、重量轻等优点,但是其馈电需要平衡线结构.半模基片集成波导具有平面集成、主模带宽宽、损耗低、尺寸小等优点,同时自身天然具有平衡结构.文中设计并制作了工作频率为15GHz~40GHz的HMSIWPLPDA天线,测试结果和仿真结果吻合. 相似文献
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提出了基于半模基片集成波导(HMSIW)互连的高速数据传输系统,并实现了单通道7.5Gbps 的高速数字信号传输。对传统SIW 互连传输系统进行了改进,设计加工了新型HMSIW 波导互连,替换传统SIW 波导互连,使得信道传输带宽和系统传输速率显著提高。在相同主模截止频率条件下,HMSIW 的工作带宽为SIW 的两倍,而其宽度尺寸仅为SIW 的一半。仿真与实测结果显示论文提出的HMSIW 互连传输系统与文献提出的传统SIW 互连传输系统相比,前者的最高传输速率是后者的1.5 倍。 相似文献
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多条耦合器(Multistrip coupler)是应用于声表面波的定向耦合器。它由在压电基片上的平行金属条阵列组成。它的特殊性能是耦合在单晶基片上的非波导声波。这是与波导耦合器以及邻接媒质耦合器大不相同的。 相似文献
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一种新型的基于半模基片集成波导(HMSIW)表面上开互补谐振环高性能平面滤波器。该结构允许低于截止频
率以下传输正向波,利用具有高通特性的HMSIW 和CSRR 组成具有带通特性的滤波器,该滤波器具有体积小巧,损耗
低,易制作,并方便与其他电路集成等优势 相似文献
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给出了一种新型半模基片集成波导(HMSIW)带通滤波器的设计和实验方案。该设计利用了半模基片集成波导的高通性质与周期性缝隙的带阻性质来产生带通滤波器的效果。设计的滤波器的中心频率在8GHz,带宽在12.5%左右,通带内插入损耗在1dB以下,回波损耗在-15dB以下,同时具有一定的带外抑制和良好的通带和阻带特性。文章最后用Ansoft HFSS软件进行了仿真实验。 相似文献
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Half Mode Substrate Integrated Waveguide (HMSIW) 3-dB Coupler 总被引:1,自引:0,他引:1
Liu B. Hong W. Wang Y.-Q. Lai Q.-H. Wu K. 《Microwave and Wireless Components Letters, IEEE》2007,17(1):22-24
In the microwave band, substrate integrated waveguide (SIW) couplers take the advantages of low profile, low insertion loss, low interference etc., but suffer from the big size. In this letter, a novel half mode substrate integrated waveguide (HMSIW) 3-dB coupler is proposed, which keeps the good performance of the SIW coupler with nearly a half reduction in size. Simulated results are in agreement with the measured data 相似文献
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Jixin Chen Wei Hong Hongjun Tang Pinpin Yan Bing Liu Ke Wu 《Journal of Infrared, Millimeter and Terahertz Waves》2012,33(3):348-356
A novel six-port network based on half-mode substrate integrated waveguide (HMSIW) is proposed. In this design, a HMSIW hybrid
3 dB coupler and a -90° phase shifter are designed as fundamental building block of six-port network. By combining four HMSIW
couplers and one phase shifter, a HMSIW six-port network at 29–32 GHz is constructed. The six-port network is fabricated and
measured. Measurement results agree well with simulation, and show good balance and phase relationship between ports. 相似文献
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A structure for an optimum monopulse feed is proposed at Ku-band using a muftimode substrate integrated waveguide (SIW). A 180deg directional coupler is employed to realise the in- or out-of-phase feeding mechanism, and an H-plane moder is used to generate the odd and even illumination laws at the aperture. A horn antenna is constructed from the dielectric substrate and three other copper plates to radiate energy effectively. All parts have been fabricated in a normal PCB process. Good agreement between the simulation and measurement is observed, which certifies that this type of SIW monopulse feed is feasible and has good characteristics. 相似文献
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Yujian Cheng Wei Hong Ke Wu 《Microwave and Wireless Components Letters, IEEE》2007,17(7):504-506
A double-loop directional filter is described and realized in this work by using a novel guided-wave structure called half mode substrate integrated waveguide (HMSIW), which retains the attractive performances of substrate integrated waveguide (SIW) with a nearly half reduction in size compared to the original SIW version. The demonstrated filter is designed at 12 GHz with less than 3.2 dB insertion loss for a 250-MHz bandwidth, and the minimum insertion loss is 1.5 dB. It presents low insertion loss, high power capacity in planar compact configuration with a standard PCB fabrication process. 相似文献
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本文提出了半模基片集成波导的镜像转接段设计,并对其功率分配方面的应用展开了研究.首先分析了半模基片集成波导应用于功分器设计的局限性,然后提出了通过镜像转接方式来实现具有双侧开口面的新型半模基片集成波导镜像转接段.通过仿真分析和实验测试验证了半模基片集成波导镜像转接段结构及其设计方法的可行性.最后设计了基于镜像转接段且具有对称结构的半模基片集成波导三路功分器.该功分器的仿真结果与实验数据表明,采用镜像连接段的半模基片集成波导器件具有良好的传输性能,有助于拓宽半模基片集成波导在功率分配网络设计方面的应用. 相似文献
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In this paper a new type of millimeter wave integrated directional coupler is proposed. The coupling mechanism on the narrow wall of waveguide consists of a series of bilateral E-plane slots deposited on a dielectric substrate by photo-etching technique. The modified generalized transmission parameters considering the thickness effects of the strips and higher order mode interactions at the step discontinuities in the coupling region are used in optimizing program. The calculated performance of a 3-dB 12-slot directional coupler at Ka-band is given. A prototype Ka-band coupler has been tested. The measured results agree with the theoretical prediction satisfactorily. 相似文献
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Characterization of the Propagation Properties of the Half-Mode Substrate Integrated Waveguide 总被引:2,自引:0,他引:2
《Microwave Theory and Techniques》2009,57(8):1996-2004
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Haidong Chen Tianyu Zhang Yue Cao Wenjie Feng 《International Journal of Electronics》2018,105(6):1036-1050
Half-mode substrate integrated waveguide (HMSIW) switchable unit, built by HMSIW section with loaded single or multi-microstrip shunt stub(s), was proposed in this work. Both shorted and opened stubs were studied, investigated and compared, bandwidth enhancement method for proposed switchable units was proposed and demonstrated. Based on these switchable units, narrowband and broadband HMSIW single-pole-single-through (SPST) switches, SIW SPST switch and SIW/HMSIW-based single-pole-double-through (SPDT) switch were designed, fabricated and measured. Good performances were observed experimentally for these proposed circuits, showing the advantages of proposed concept and an excellent candidate for switchable or reconfigurable SIW/HMSIW circuits or systems. 相似文献