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IEEE Microwave and Wireless Components Letters

Issue 7 • Date July 2006

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Displaying Results 1 - 22 of 22
  • Table of contents

    Publication Year: 2006, Page(s): c1
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  • IEEE Microwave and Wireless Components Letters publication information

    Publication Year: 2006, Page(s): c2
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  • Editorial

    Publication Year: 2006, Page(s):389 - 391
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  • Analysis of cylindrical microstrip lines using the discrete mode matching method

    Publication Year: 2006, Page(s):392 - 394
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB) | HTML iconHTML

    This letter presents an extension of the discrete mode matching (DMM) method to analyze microstrip lines conformed on cylinders. The DMM is well suited to the analysis of multilayered structures, since the fields must be only sampled at the interfaces between the dielectric layers. For the case of cylindrical microstrip lines, the structure is discretized only along one direction, whereas the anal... View full abstract»

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  • Analysis of single-ground-plane coplanar waveguide

    Publication Year: 2006, Page(s):395 - 397
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB) | HTML iconHTML

    Analysis applicable for a class of coplanar transmission lines with a single ground plane has been worked out with use of the spectral domain approach (SDA). Representative results for the single-ground-plane coplanar waveguide are provided. Despite line geometrical simplicity, results of its full-wave analysis have not been presented in literature so far. Comparison with experimental data has yie... View full abstract»

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  • Split-field PML implementations for the unconditionally stable LOD-FDTD method

    Publication Year: 2006, Page(s):398 - 400
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB) | HTML iconHTML

    We introduce and compare two split-field implementations of the perfectly matched layer (PML) for the unconditionally stable locally one-dimensional (LOD) finite-difference time-domain (FDTD) method. The LOD-FDTD formalism is expanded in terms of a symmetric source implementation. It is verified that the relative performance of both PML implementations is superior to the split PML performance in t... View full abstract»

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  • Vertical microstrip transition for multilayer microwave circuits with decoupled passive and active layers

    Publication Year: 2006, Page(s):401 - 403
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (849 KB) | HTML iconHTML

    A novel broadband (including dc) microstrip-to-microstrip vertical transition for multilayer microwave circuits is proposed. This transition solves the problem of the discontinuity typically appearing in via hole transitions between two microstrip transmission lines in different layers. An analogy existing between this transition and a rectangular coaxial line is discussed. A parametric study alon... View full abstract»

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  • A novel microstrip dual-mode bandpass filter with harmonic suppression

    Publication Year: 2006, Page(s):404 - 406
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (461 KB) | HTML iconHTML

    A novel dual-mode microstrip bandpass filter (BPF) with harmonic suppression is presented in this letter. The filter is composed of a perturbed square-ring resonator and two end-open L-shaped microstrip lines for the input and output of the resonator. The harmonic suppression of the BPF may be realized by choosing a proper length for the L-shaped microstrip line. The BPF has been investigated nume... View full abstract»

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  • Using the technology of low temperature co-fired ceramic to design the dual-band bandpass filter

    Publication Year: 2006, Page(s):407 - 409
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (405 KB) | HTML iconHTML

    The novel dual-band bandpass filter is proposed in this letter. In order to miniaturize the size of the circuit and improve its performance, multilayered structure and the technology of low temperature co-fired ceramic (LTCC) are employed to design and fabricate the filter. Adopting the structure of a coupled line, two open-stub lines, and two capacitors, the transmission zeros can easily appear a... View full abstract»

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  • Packaging of MMICs in multilayer LCP substrates

    Publication Year: 2006, Page(s):410 - 412
    Cited by:  Papers (26)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (393 KB) | HTML iconHTML

    A 13-25-GHz GaAs bare die low noise amplifier is embedded inside a multilayer liquid crystal polymer (LCP) package made from seven layers of thin-film LCP. This new packaging topology has inherently unique properties that could make it an attractive alternative in some instances to traditional metal and ceramic hermetic packages. LCP is a near-hermetic material and its lamination process is at a r... View full abstract»

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  • An electromagnetic crystal power substrate with efficient suppression of power/ground plane noise on high-speed circuits

    Publication Year: 2006, Page(s):413 - 415
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB) | HTML iconHTML

    An electromagnetic crystal power substrate (ECPS) in a high-speed circuit package is proposed for suppressing the power/ground planes noise (P/GPN) and the corresponding electromagnetic interference (EMI). The ECPS is simply realized by periodically embedding the high dielectric-constant rods into the conventional package substrate between the continuous power and ground planes. With a small numbe... View full abstract»

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  • Microstrip line on an artificial dielectric substrate

    Publication Year: 2006, Page(s):416 - 418
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (187 KB) | HTML iconHTML

    This letter presents a new version of an artificial dielectric substrate and a microstrip line built on top of this substrate. The substrate is fabricated as a two-dimensional array of metallic posts separated from the top conductor by a thin dielectric slab. This structure can show a very high effective permittivity and can therefore offer a substantial reduction in the dimensions of microwave ci... View full abstract»

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  • The picosecond pulse transmission on the conductor-backed coplanar waveguide with via holes

    Publication Year: 2006, Page(s):419 - 421
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (243 KB) | HTML iconHTML

    -The picosecond pulse propagation on the conductor-backed coplanar waveguide (CBCPW) with via holes is investigated. For this purpose, an empirical dispersion formula by fitting measurement data is proposed and Gaussian picosecond pulse transmissions on the CBCPW with via holes are simulated. By comparing the modeling data with the simulation result by the reported formula, we verify the usefulnes... View full abstract»

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  • Numerical investigation of resonances within the X-band waveguide type

    Publication Year: 2006, Page(s):422 - 424
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB) | HTML iconHTML

    In this letter, we report on the numerical investigation of resonances within waveguide type resistive sensors used for measuring high power microwave pulse radiation in the X-band. We have applied a finite-difference time-domain method to determine the dependencies of the average electric field and its distribution on frequency for several sets of dimensions and specific resistances of the sample View full abstract»

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  • A Q-band low phase noise monolithic AlGaN/GaN HEMT VCO

    Publication Year: 2006, Page(s):425 - 427
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (517 KB) | HTML iconHTML

    A Q-band 40-GHz GaN monolithic microwave integrated circuit voltage controlled oscillator (VCO) based on AlGaN/GaN high electron mobility transistor technology has been demonstrated. The GaN VCO delivered an output power of +25dBm with phase noise of -92dBc/Hz at 100-KHz offset, and -120dBc/Hz at 1-MHz offset. To the best of our knowledge, this represents the state-of-the-art for GaN VCOs in terms... View full abstract»

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  • A low voltage W-CDMA polar transmitter with digital envelope path gain compensation

    Publication Year: 2006, Page(s):428 - 430
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (173 KB) | HTML iconHTML

    This letter presents a polar transmitter using a dual-phase pulsewidth-modulated buck converter with a 50-MHz effective switching frequency. Using a wideband code division multiple access voice signal, the overall system can achieve 52.8% drain efficiency (49.8% power added efficiency) at 24-dBm output power at 836.5MHz with a 3.5-V supply voltage, while passing both adjacent channel leakage power... View full abstract»

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  • Compact reflective microstrip phase shifter for traveling wave antenna applications

    Publication Year: 2006, Page(s):431 - 433
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB) | HTML iconHTML

    A varactor diode based microstrip phase shifter for 5.8GHz is presented. It is designed for use in microstrip traveling wave antennas where there is a strict limitation on the available space for the phase shifters. To meet all requirements, a reflective type phase shifter is chosen. Such a phase shifter includes a hybrid coupler. A compact branch line coupler is designed to make the phase shifter... View full abstract»

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  • Quality without compromise

    Publication Year: 2006, Page(s): 434
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    Publication Year: 2006, Page(s): 435
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    Publication Year: 2006, Page(s): 436
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  • IEEE Microwave and Wireless Components Letters Information for authors

    Publication Year: 2006, Page(s): c3
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  • Blank page

    Publication Year: 2006, Page(s): c4
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Aims & Scope

The IEEE Microwave and Wireless Components Letters (MWCL) publishes three page papers that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals.

Full Aims & Scope