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Integrated Waveguide (integrate + waveguide)

Distribution by Scientific Domains
Engineering100%

Kinds of Integrated Waveguide

  • substrate integrate waveguide
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    Selected Abstracts

    A compact substrate integrated waveguide H-plane horn antenna with dielectric arc lens

    INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 5 2007
    Wenquan Che
    Abstract An H-plane horn antenna constructed into SIW (substrate integrated waveguide) is proposed. It has a dielectric arc lens for better directivity and a simple microstrip transition as feed. The horn, the lens and the transition share the same substrate. The resulting formula from optical principles shows that the suitable dielectric lens can improve the directivity of the antenna significantly. A prototype was fabricated; the antenna size is 39.175 × 14 × 2 mm3. The frequency band is from 25.5 to 28.5 GHz. The measured gain of this antenna is about 9 dB; the bandwidth, at 10 dB return loss, is over 12%. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2007. [source]

    Ka-band substrate integrated waveguide voltage-controlled Gunn oscillator

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 6 2010
    Zhou Cao
    Abstract A Ka-band substrate integrated waveguide (SIW) voltage-controlled oscillator (VCO) is demonstrated using GaAs Gunn diode.GaAs hyperabrupt varactor is employed in parallel to the Gunn diode for low phase noise and wideband tuning. The VCO achieves a tuning range of more than 1 GHz by varying the varactor tuning voltage between 0 V and 9 V, and phase noise of ,102.1 dBc/Hz at 1 MHz offset from a 36 GHz carrier frequency. The output power varies from 9.3 dBm to 11.3 dBm within the tuning range. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1232,1235, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25169 [source]

    Rectangle waveguide to substrate integrated waveguide transition and power divider

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 2 2010
    Chao Li
    Abstract A novel Ku-band transition and power divider between rectangle waveguide (RWG) and substrate integrated waveguide (SIW) is proposed. This transition and power divider is realized by a radiating metal patch located on the backside of a middle dielectric substrate and a coupling aperture etched on the SIW's ground plane. The transition and power divider is studied both simulatively and experimentally. As reported, low insertion loss of not higher than 0.6 dB and good return loss of ,15 dB may be achieved at the frequency range of 12.1,12.8 GHz. The method to increase the bandwidth is investigated. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 375,378, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24902 [source]

    An efficient iterative method for analysis of a substrate integrated waveguide structures

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 1 2010
    Hassen Zairi
    Abstract The article presents an efficient method for characterization of substrate integrated waveguide structures. Substrate integrated circuits are considered as an ensemble of conducting vias placed in a parallel-plate waveguide. The analysis is based on the wave concept formulation and the iterative resolution of two relationships between incident and reflected volume-waves. The reflection operator is expressed using Hankel functions and computed by considering the scattering from the ensemble of conducting posts. Numerical results have been obtained for substrate integrated waveguide (SIW) structures already presented in literature. Simulations obtained are compared with recent published results. A good agreement is achieved together with significant improvements both in computational time and memory requirements. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 45,48, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24825 [source]

    Ku-band substrate integrated waveguide transitions between layers

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 11 2009
    Kaijun Song
    Abstract Two types of the substrate integrated waveguide (SIW) transitions between layers are presented in this letter. The SIW circuits have been used to achieve the transition from one layer to other layer. These two types of SIW transitions between layers operating in Ku-band have been designed and fabricated. The measured 10-dB return loss bandwidth of the transition between adjacent layers is about 7 GHz, and the measured 1-dB insertion loss bandwidth is about 5 GHz; the measured 13-dB return loss bandwidth of the unadjacent-layers transition is demonstrated to be about 3.7 GHz, and the measured insertion losses are less than 2 dB from 11.2 GHz to 15 GHz. The simulated and measured results indicate that these two SIW transitions take the advantages of broadband, low insertion loss, and low profile. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2585,2588, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24685 [source]

    Microwave characteristics of substrate integrated waveguide photodetector

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 9 2009
    Ebrahim Mortazy
    Abstract In this article, using a novel structure, simulated and measured microwave characteristics from substrate integrated waveguide photodetector (SIWPD) are obtained and compared with the conventional microstrip waveguide photodetector. A Ka-band microstrip to rectangular waveguide multilayer transition for OC-768/STM-256 optical systems is designed and fabricated. Attenuation constant results shows that by replacing substrate integrated waveguide (SIW) instead of conventional microstrip in waveguide photodetectors, operation frequency can be increased. Microwave fields in the proposed structure show a good transition from quasi-TEM mode to TE10 mode in multilayer structure. The multilayer structure is considered to separate SIW and DC bias of the photodetector. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2204,2207, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24528 [source]

    Substrate-integrated-waveguide feed network for microstrip antenna arrays

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 7 2009
    Mohsen Yousefbeigi
    Abstract In this article, a low-loss parallel-series feed structure using substrate integrated waveguide (SIW) technology for a single-layer microstrip antenna array is presented. In addition to reduction of feed radiation, the feed network benefits from typical advantages of planar structures such as compactness, low cost, integrability, and mass-producibility. A 2 × 8 microstrip antenna array of size 109 mm × 34 mm fed by the proposed SIW feed system is designed and fabricated. Measurements on the fabricated array verify a minimum gain of 17.5 dBi in the frequency range of 17.4 to 18 GHz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1619,1621, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24412 [source]

    A novel bandpass filter based on complementary split rings resonators and substrate integrated waveguide

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 3 2008
    Wenquan Che
    Abstract One novel bandpass filter implemented with combination of two different structures-complementary split rings resonators (CSRRs) and substrate integrated waveguide (SIW) is proposed in this article. Several CSRRs are etched on the surface of SIW to form the stopband with very sharp rejection. One prototype was fabricated, the measured results indicate 30% passband (at ,15 dB return loss), the rejection band ranges from 6.4 GHz to 7.8 GHz, about 20% bandwidth at ,20 dB rejection, the maximum rejection even reaches 50 dB. The rejection skirt is very sharp, only 18 MHz. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 699,701, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23182 [source]

    C-band half mode substrate integrated waveguide (HMSIW) filter

    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 2 2008
    Xiaochuan Zhang
    Abstract In this letter, a novel inductive post half mode substrate integrated waveguide (HMSIW) bandpass filter is presented. The filter keeps the advantages of an SIW filter but with a reduction of nearly one-half in size. A very good agreement is observed between the simulation and the measurements. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 275,277, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23064 [source]