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ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)

14-16 Sept. 2000

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  • ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)

    Publication Year: 2000
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    Freely Available from IEEE
  • Discussion on operator theory of electromagnetic field

    Publication Year: 2000, Page(s):P24 - P28
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    The difficulties of classical electromagnetic theory is discussed and the operator theory is suggested for overcome these difficulties in this paper. The applications of the operator theory in boundary value problems of electromagnetic field are also discussed. View full abstract»

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  • Author index

    Publication Year: 2000, Page(s):720 - 724
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    Freely Available from IEEE
  • Development of a W-band scanning conscan antenna based on the twist-reflector concept

    Publication Year: 2000, Page(s):436 - 439
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    An overview of the development (electrical and mechanical) of a small W-band twist reflector based tracking antenna is presented. Design and manufacturing issues are considered as each part is made View full abstract»

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  • Ricocheting Bluetooth

    Publication Year: 2000, Page(s):432 - 435
    Cited by:  Papers (4)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The objective of this proposal is to specify the potential of integrating Bluetooth with a wireless network so that it can be used to be the extension of a wireless system to provide building (wireless office) services, universal and multi-media, multi-system, multichannel and multi-session services. The proposed invention includes several parts. First is use of combined ricocheting Bluetooth in b... View full abstract»

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  • Frequency and power governing nonlinear magnetic waves

    Publication Year: 2000, Page(s):634 - 637
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    In this paper we investigate the properties of nonlinear magnetic TM waves in the infrared frequency region on a plane interface between two uniaxial antiferromagnets. From the theoretical analysis and the numerical simulation, we find in this new guiding structure that there exist two thresholds: the frequency threshold and power threshold. All the incident waves should satisfy the two thresholds... View full abstract»

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  • Study of distribution of electromagnetic field in regeneration cavity of microwave regeneration system for DEPF (diesel emission particulate filter)

    Publication Year: 2000, Page(s):473 - 476
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    The radial field distribution of the regeneration cavity affects regeneration efficiency directly. In order to improve the radial field distribution in the cavity, a layer of dielectric material is filled between the wall and the ceramic filter. The electromagnetic field distribution of the filled cavity is analyzed in this paper, which theoretically proves the improvement of the field distributio... View full abstract»

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  • Network engineering 2000

    Publication Year: 2000, Page(s):428 - 431
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Introduction of location technology shifts the paradigm of network engineering. It opens the door for providing a revolutionary approach for network engineering. The algorithm discussed in this paper provides a way of combining parameters made available through location technology and currently available system parameters for future network engineering and operation. The “continuous” s... View full abstract»

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  • Harmonic impedance and radiation control for an active patch antenna

    Publication Year: 2000, Page(s):251 - 256
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    A shaping technique for the radiator of an active patch antenna is described, and shown experimentally to reduce harmonic radiation, the result is increased conversion efficiency. The perturbation of resonant mode frequencies in a deformed rectangular patch radiator is discussed as a possible basis for systematic design View full abstract»

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  • CA-CFAR in Weibull background

    Publication Year: 2000, Page(s):691 - 694
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    Constant False Alarm Rate (CFAR) processors are the commonly used detectors in radar to maintain control of the false alarm rate in the face of local variations in the background noise level. For this paper, the Cell-Averaging Constant False Alarm Rate (CA-CFAR) was studied and later simulated in a Weibull environment with the use of the Signal Workbench (SPW), to determine the effectiveness of th... View full abstract»

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  • Guiding characteristics of periodic impedance surface

    Publication Year: 2000, Page(s):630 - 633
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    In this paper, we present a systematic analysis of the dispersion characteristics of two-dimensionally periodic impedance surfaces. The method of mode matching is employed analyze the boundary-value problem rigorously in terms of the complete set of both TE- and TM-polarized plane waves in the uniform medium above the impedance surface. Numerical results are obtained extensively and are presented ... View full abstract»

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  • High performance analog-to-digital converters (ADCs) for signal processing

    Publication Year: 2000, Page(s):32 - 35
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    Analog-to-digital converters (ADCs) are widely used for signal processing in radar, communication and electronic warfare (EW) systems, where speed and resolution are of paramount importance. Significant improvement in dynamic range and clutter rejection are dependent on critical parameters of the ADC devices used by the radar signal processors. The presence of harmonic-related spurious signals in ... View full abstract»

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  • Biconical antennas with elliptic cross sections

    Publication Year: 2000, Page(s):452 - 454
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The methods of coordinate transformation and conformal mapping are applied to study the problem of radiation from a biconical antenna with elliptic cross section. The infinite elliptic cone geometry can be transformed into the two-dimensional plane under the assumption of pure TEM spherical waves. The closed-form solutions for the characteristic parameters are obtained View full abstract»

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  • Switching antenna array group by group for pencil beam forming

    Publication Year: 2000, Page(s):269 - 273
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    In this paper, a novel scheme for pencil beam forming is proposed in which sub-arrays share one transmit/receive channel in different time slots appointed. Compared with the traditional multi-channel antenna, this scheme only requires one set of T/R devices, and the array size is reduced by half while achieving the same beamwidth. By using interpolation technique of nonuniformity space sample, we ... View full abstract»

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  • Analysis of smooth transition section in microwave regeneration system of diesel filter

    Publication Year: 2000, Page(s):469 - 472
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    In this paper, we discuss the study of smooth transition section in microwave regeneration system of diesel filter. A transition method of gradual change section is adopted. The microwave energy in rectangular waveguide can effectively transfer to the column regeneration cavity through the special diversion of electromagnetism mode. It gives a better matching between microwave source and regenerat... View full abstract»

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  • Up-conversion mixer for PCS application using Si BJT

    Publication Year: 2000, Page(s):424 - 427
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    This paper analyzed three types of up-conversion mixer architectures for PCS applications using fT=25 GHz Si bipolar process. An optimum architecture that combines the mixer cell with an active balun is proposed. The balun provides high linearity and LO suppression. Simulation results shows conversion gain=0 dB, LO to RF leakage=24.8 dBm, output third-order intercept point (OIP... View full abstract»

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  • Wave approach to S-parameter and noise parameter prediction of FET devices

    Publication Year: 2000, Page(s):164 - 167
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    This paper presents a simple procedure for the extraction of scattering parameters and noise parameters of microwave transistors. A set of equation describing transistor noise parameters as the function of three equivalent noise wave temperatures is implemented within the circuit simulator Libra. The prediction of noise parameters for a broad frequency range is done on the basis of a single freque... View full abstract»

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  • Multichannel MM wave receive front-end

    Publication Year: 2000, Page(s):356 - 358
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    A miniaturized three channel MM wave receive front-end is realized. The final results are: between the frequency range (36-38 GHz), the gain of the whole front-end is 25 dB, noise figure is less than 6.5 dB, the switch time is less than 60 nS, isolation is greater than 35 dB View full abstract»

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  • Design of convolutional encoders for ultra high speed and optical communications

    Publication Year: 2000, Page(s):247 - 250
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    In this paper the implementation of a coding circuit for convolutionary codes is suggested. It is based on a purely combinational circuits composed of a cascade of iterative cells. The circuit modularity makes it suitable for an easy integration. The performance evaluation shows the enhancement in terms of operating speed and number of logic gates adopted, with respect to the sequential solution. ... View full abstract»

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  • Direction-of-arrival estimation with wavelet-based spatial filtering

    Publication Year: 2000, Page(s):687 - 690
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    The paper studies the relation of wavelet decomposition and spatial sampling of array signal, and offers a high resolution direction-of-arrival (DOA) estimation approach based on the wavelet transforms. The results of computer simulations demonstrate that wavelet based spatial subband produces better performance than usual standard estimation methods View full abstract»

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  • A simple superresolution method of multipath delay profiles

    Publication Year: 2000, Page(s):626 - 629
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Time resolution of multipath delay profiles measured by using the autocorrelation of a pseudonoise (PN) code sequence is generally limited by the chip rate of the PN code sequence. In this paper, we proposed a simple method to improve the time resolution of delay profiles measured by the PN correlation method. The effectiveness of this method is demonstrated by an indoor wireless propagation exper... View full abstract»

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  • Development of DGPS system based on FM subcarrier data link

    Publication Year: 2000, Page(s):408 - 411
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    A navigation positioning system utilizing the FM subcarrier RDS channel of a broadcasting station to transmit the DGPS information is introduced in this paper. Its structure, working principle and field experimental results are depicted in detail View full abstract»

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  • Microwave performance of SOI lateral dual carrier field effect transistors and integrated circuits (SOI LDCFET and SOI DCFEIC)

    Publication Year: 2000, Page(s):28 - 31
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    We have discovered and studied a new mode of operation of transistors and integrated circuits-dual carrier field effect transistors (DCFETs) and integrated circuits (DCFEICs). In this paper we present the device physics theory and some of the DC measurement results of one type of structure for our new mode of operation. We show that, with mature SOI technology, the SOI lateral DCFET (LDCFET) is pr... View full abstract»

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  • Field analysis of integrated optical grating with large and complex corrugations

    Publication Year: 2000, Page(s):291 - 294
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A method to determine the field scattered by periodic structures with rectangular gratings is developed. The grating can be built up as a series of pulses with different periods and duty cycles. With the proposed method, we have investigated some configurations and obtained their propagation characteristics. The presented model is exact and the numerical results can be obtained in a very short cpu... View full abstract»

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  • A new linearity enhancing technique for ultra-wide dynamic range low noise amplifiers

    Publication Year: 2000, Page(s):150 - 152
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    This paper presents a new linearity enhancing technique for design of LNAs (Low Noise Amplifiers) which require high linearity and low power consumption for CDMA mobile station applications. In order to verify the feasibility of the proposed scheme over the conventional scheme, four different low noise amplifiers for 9000 MHz and 1.85 GHz applications have been designed, fabricated and measured us... View full abstract»

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