IEEE Microwave and Guided Wave Letters

Issue 2 • Feb. 2000

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Displaying Results 1 - 10 of 10
  • Analysis of microstrip lines in multilayer structures of arbitrarily varying thickness

    Publication Year: 2000, Page(s):52 - 54
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (106 KB)

    A general approach to the full-wave analysis of microstrip lines in multilayer dielectrics of arbitrarily varying thickness is developed. It is based on the discrete mode matching technique (DMM) and uses a full-wave equivalent circuit for the stratified structure, which is simple to apply in a numerical procedure, As an example, the propagation constant of a microstrip line in the interface of tw... View full abstract»

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  • Compact folded line rat-race hybrid couplers

    Publication Year: 2000, Page(s):61 - 63
    Cited by:  Papers (66)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (54 KB)

    A new, compact folded line configuration for rat-race hybrid couplers is proposed. Simple design equations are presented for the single and double C-section folded line structures. The new configuration exhibits a four- to fivefold reduction in footprint as compared to the conventional rat-race configuration. The design is validated both by using the full-wave electromagnetic simulator and with me... View full abstract»

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  • A compact monolithic C-band direct conversion receiver

    Publication Year: 2000, Page(s):67 - 69
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB)

    A compact monolithic C-band direct conversion receiver has been implemented in a commercial 0.6 μm GaAs MESFET process. Subharmonic mixing is utilized to suppress even-order intermodulations and eliminate DC offsets. Second-order input intercept point (IIP2) of +17 dBm, third-order input intercept point (IIP3) of +8 dBm, and DC offset of -80 dBm are measured on wafer without the use of add... View full abstract»

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  • Patent abstracts

    Publication Year: 2000, Page(s):75 - 90
    Request permission for commercial reuse | PDF file iconPDF (408 KB)
    Freely Available from IEEE
  • Impact of test-fixture forward coupling on on-wafer silicon device measurements

    Publication Year: 2000, Page(s):73 - 74
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    Often, the test-fixture forward coupling is ignored during on-wafer device measurements, although existing de-embedding techniques provide means for addressing its effect. In this work it is demonstrated that large errors may occur if forward coupling is not determined and accounted for. An investigation based on basic scaling properties of MOSFETs is proposed as a benchmark test to partially veri... View full abstract»

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  • Fully integrated 94-GHz subharmonic injection-locked PLL circuit

    Publication Year: 2000, Page(s):70 - 72
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    A new integrated W-band frequency source MMIC is presented which consists of a 94 GHz voltage-controlled oscillator (VCO) with large tuning range and a phase comparator, forming a subharmonic injection-locked phase-locked loop (ILPLL). The ILPLL combines conventional injection-locking with an additional phase control loop to improve the locking range of the oscillator significantly. The 4th subhar... View full abstract»

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  • On-chip interconnect lines with patterned ground shields

    Publication Year: 2000, Page(s):49 - 51
    Cited by:  Papers (22)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    Measurements of on-chip interconnect lines with a patterned ground shield (PGS) are analyzed and compared to lines with no ground shield (NGS). At frequencies at and below 7 GHz, the PGS lines have about one fifth the dissipative loss of that of the NGS lines. By using a doped layer in the silicon for the shield, as opposed to other metal layers which are closer to the line, a reasonably high char... View full abstract»

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  • Analysis and design of an inhomogeneous transformer with hard wall waveguide sections

    Publication Year: 2000, Page(s):55 - 57
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    A new inhomogeneous waveguide transformer with hard walls is presented. Mode matching technique along with an optimization routine is used to design the transformer. The generalized scattering matrix (GSM) of the whole block is calculated which can be used to predict the fields at the output given the incident excitations. An example of a three-section transformer, which replaces a tapered hard ho... View full abstract»

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  • A single-layer CPW-fed active patch antenna

    Publication Year: 2000, Page(s):64 - 66
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB)

    A single-layer CPW-fed active patch antenna oscillator at 2.76 GHz is presented. The patch antenna acts both as a resonator and a radiator. Electromagnetic coupling is utilized for providing the appropriate closed-loop positive feedback. The active antenna is built around a commercially available GaAs MMIC on a low-permittivity εr =2.33 Duroid 5870 substrate. The measured effective... View full abstract»

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  • Quadrature directional couplers using multisection coupled lines

    Publication Year: 2000, Page(s):58 - 60
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    New structure and design methods of directional couplers that can achieve both loose coupling and tight coupling by use of multisection coupled lines are presented. Output voltage formulas at each port are derived from the coupled-line theory. Measured results agree very well with predicted ones. Since the proposed couplers are very small in size and have suitable shape for high-density integrated... View full abstract»

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Aims & Scope

This Periodical ceased production in 2000. The current retitled publication is IEEE Microwaves and Wireless Component Letters.

Full Aims & Scope