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IEEE Microwave and Wireless Components Letters

Issue 12 • Dec. 2001

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Displaying Results 1 - 11 of 11
  • 2001 reviewers list

    Publication Year: 2001, Page(s):481 - 482
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    Freely Available from IEEE
  • A planar orthomode transducer

    Publication Year: 2001, Page(s):483 - 485
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (46 KB) | HTML iconHTML

    The planar orthomode transducer (OMT) described in this paper couples two microstrip inputs to two orthogonal modes in a square waveguide. One microstripline feeds a 180/spl deg/ hybrid that in turn excites two waveguide probes. A second microstrip directly feeds a third waveguide probe. Mode symmetry provides isolation between the two feeds. All circuitry and probes are fabricated on a single sub... View full abstract»

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  • Chirped delay lines in microstrip technology

    Publication Year: 2001, Page(s):486 - 488
    Cited by:  Papers (35)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB) | HTML iconHTML

    In this paper, we report on a design method for chirped delay lines (CDLs) in microstrip technology. They consist in a continuously varying strip width, so that the coupling location between the quasi-TEM microstrip mode and the same but counter-propagating mode is linearly distributed in frequency. High delay/spl times/bandwidth products, over frequency ranges of several gigahertzs, can be obtain... View full abstract»

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  • Coaxial continuous transverse stub (CTS) array

    Publication Year: 2001, Page(s):489 - 491
    Cited by:  Papers (19)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (79 KB) | HTML iconHTML

    A new coaxial continuous transverse stub (CTS) array is proposed, designed, constructed, and tested. It is an omni-directional low cost antenna array which provides good impedance matching characteristics and good tolerance to manufacturing errors. It can be simply fed by a coaxial connector and is particularly suitable for millimeter wave personal communication systems (PCS). It is shown that thi... View full abstract»

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  • A dual-beam asymmetrically scanning leaky-wave antenna by utilizing a HEMT resistive upconverter

    Publication Year: 2001, Page(s):492 - 494
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (67 KB) | HTML iconHTML

    A dual-beam asymmetrical scanning microstrip leaky-wave antenna (LWA) has been demonstrated in this paper. A HEMT resistive upconverter output is connected to one terminal of the LWA, and a local oscillator (LO) signal is connected to the other terminal. In this experiment, we set the LO frequency at 9.5 GHz so that the right beam is fixed at 48/spl deg/. By changing the IF frequency from 0.7 GHz ... View full abstract»

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  • Cross-coupled differential oscillator MMICs with low phase-noise performance

    Publication Year: 2001, Page(s):495 - 497
    Cited by:  Papers (11)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB) | HTML iconHTML

    LC-tank oscillators in the 5/spl sim/6 GHz frequency range have been designed and implemented in a commercial 0.6 μm GaAs MESFET technology. One is a voltage-controlled oscillator (VCO), and the other is an oscillator without a controlling element. The output frequency range of the VCO is from 5.44 to 6.14 GHz, and the measured phase-noise is -101.67 dBc/Hz at an offset frequency of 600 KH... View full abstract»

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  • Monolithic coplanar transmission lines loaded by heterostructure barrier varactors for a 60 GHz tripler

    Publication Year: 2001, Page(s):498 - 500
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (70 KB) | HTML iconHTML

    Nonlinear transmission lines (NLTLs) loaded by InP-based heterostructure barrier varactors (HBVs) have been fabricated in a monolithic coplanar technology for the first time. The devices were designed for a tripler with a 60 GHz; output frequency. The single HBV diodes, fabricated in a dual barrier scheme, exhibit a capacitance ratio of 6:1, a normalized capacitance of 1.4 fF/μm... View full abstract»

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  • Patent abstracts

    Publication Year: 2001, Page(s):501 - 507
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    Freely Available from IEEE
  • Asia-Pacific abstracts

    Publication Year: 2001, Page(s):508 - 571
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (423 KB)

    Papers from Journals Published in China, Korea, and Japan in 2000 are noted. The Chinese and japanese references were c ompiled by Dr. Hiroyo Ogawa and Prof. S.-J. Xu. The periodicals investigated are 1) Acta Electronica Sinica, (AES), China, 2) Journal of China Institute of Communications, (JCIC), China, 3) Journal of Infrared and Millimeter Waves, (JIMW), China, 4) Journal of Applied Science, (J... View full abstract»

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  • Author Index

    Publication Year: 2001, Page(s):572 - 577
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    Freely Available from IEEE
  • Subject Index

    Publication Year: 2001, Page(s):577 - 589
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    Freely Available from IEEE

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.

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Meet Our Editors

Editor in Chief
N. Scott Barker
Dept. Elect. Comp. Eng.
University of Virginia
Charlottesville, VA 22904
barker@virginia.edu
dsk6n@virginia.edu