IEEE NTC,Conference Proceedings Microwave Systems Conference

17-19 May 1995

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  • IEEE NTC '95 The Microwave Systems Conference. Conference Proceedings

    Publication Year: 1995
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  • Index

    Publication Year: 1995
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    Freely Available from IEEE
  • State-of-the-art semiconductor devices for mobile communication systems in Europe

    Publication Year: 1995, Page(s):65 - 72
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1240 KB)

    The mobile communication market is the current driving force of the telecommunication industry. A new quality of flexible, wireless and integrable services is required having impact on telecommunication networks, computers, automotive management systems, air traffic control etc. An actual overview of mobile and related systems will be given in the beginning followed by the description of enhanced ... View full abstract»

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  • HF array simulations

    Publication Year: 1995, Page(s):233 - 236
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    The Ionospheric Research Instrument (IRI) is an HF transmitting array facility currently being constructed in Gakona, Alaska, as part of the HF Active Auroral Research Program (HAARP). This program will result in an ionospheric heater facility in the auroral region, dedicated to the exploration of ionospheric phenomena that can be induced by ionospheric modification. For an HF array where the tran... View full abstract»

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  • Self-modulated Gunn diode self-oscillating mixer

    Publication Year: 1995, Page(s):61 - 62
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (132 KB)

    The use of low frequency oscillations that occur in the bias circuit of a Gunn oscillator for Doppler signal detection in a Gunn self-oscillating mixer is described. This approach increases sensitivity, improves performance of a Gunn self-oscillating mixer and simplifies the scheme of Doppler signal processing. The system can be used as a short range self-mixing Doppler radar View full abstract»

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  • Square spiral microstrip antennas for wireless applications

    Publication Year: 1995, Page(s):229 - 232
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    The characteristics of wide bandwidth and simplicity of construction make square spiral microstrip antennas attractive for today's wireless applications. An overview of a method of moments analysis for such antennas is covered, and data obtained from a FORTRAN program implemented on a standard 486 personal computer is presented for a multifunction 900 MHz to 2.1 GHz test case View full abstract»

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  • Multiple deception jamming techniques using digitally controlled, solid-state phase shifters

    Publication Year: 1995, Page(s):57 - 60
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Solid-state, phase-shifting serrodyne techniques are discussed as a high performance, light-weight, high reliability and low cost alternative to medium power traveling wave tube amplifier (TWTA) generated deception jamming. Used in conjunction with digital signal processing (DSP) techniques, this approach provides the next generation of intelligently controlled deception waveforms for EW applicati... View full abstract»

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  • A vehicle mounted Mobilesat antenna system for Australia

    Publication Year: 1995, Page(s):225 - 228
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB)

    A land vehicle mobile satellite communications system is described. The frequencies of operation of Mobilesat are 1545.0-1559.0 MHz (for reception) and 1646.5-1660.5 MHz (for transmission) in the L-band. The system designed for the Australian continent in particular, includes a 14-element cylindrical antenna array based on electronic steering in the azimuth. All of the components including the ind... View full abstract»

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  • Paradigm shift in RF avionics sensor implementation

    Publication Year: 1995, Page(s):53 - 56
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Military avionics developers have increasing impetus to provide more capability at lower cost. Coupled with these user needs are an increasing focus on the application of commercial off-the-shelf products and technology. The scope of sensor system design is focusing from highly autonomous to networked operation. Thus, military avionics are evolving to a form more synergistic with commercial telesy... View full abstract»

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  • A novel microwave omnidirectional antenna for wireless communications

    Publication Year: 1995, Page(s):221 - 224
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    A novel microwave omnidirectional antenna is proposed in this paper for wireless communications. This antenna is constructed with cavity-restrained multi-stacked dielectric disks. Vertical polarized omnidirectional radiation patterns are obtained from radiative ring slots in the side wall of dielectric-metal cavities operating on TM01δ mode. High omnidirectional gain is realized w... View full abstract»

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  • Two frequency multifunctional radar for mobile application

    Publication Year: 1995, Page(s):125 - 128
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    A radar system for vehicles is presented working with two modules at different frequencies and a special arrangement of the modules. From the resulting Doppler spectra in the baseband and in the IF band the velocity, the tilt angle and the height with respect to ground, the direction of the movement of a vehicle and the classification of the road condition can be derived. Even if the baseband sign... View full abstract»

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  • Radar and electronic warfare applications of SAW-based subsystems

    Publication Year: 1995, Page(s):43 - 51
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    The properties of surface acoustic wave (SAW) devices make them useful in many applications for both military and commercial systems. Some applications include signal processing, frequency control, and sensors. The paper presents a concise overview of SAW-based subsystems and their application in radar and electronic warfare (EW). An emphasis is placed on oscillators, channelized filters, gain com... View full abstract»

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  • SAW sensor system application

    Publication Year: 1995, Page(s):215 - 218
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The article gives an overview of the capabilities of sensor systems combining the basic principles of SAW identification (ID) tags with the properties of SAW sensors. The concept of SAW telemetry systems created in this way has several advantages compared with other solutions, with the two most important being that the sensors themselves do not require any separate energy source when operating, an... View full abstract»

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  • Imaging applications of millimeter wave sensors in robotics and road traffic

    Publication Year: 1995, Page(s):115 - 124
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    Many tasks that can be fulfilled by millimeter wave sensors are in principle the solution to 2-D or 3-D imaging problems. After a recapitulation of the basics of obtaining 3-D resolution in spatial frequency domain the various methods of obtaining longitudinal resolution such as pulse, pulsed FM, FMCW and PN modulation are discussed as well as principles to achieve lateral resolution in one or two... View full abstract»

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  • A low cost 3.6 V single-supply GaAs power amplifier IC for the 1.9-GHz DECT system

    Publication Year: 1995, Page(s):37 - 40
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A GaAs power amplifier IC in a SOIC-16 plastic package has been developed for the 1.9 GHz Digital European Cordless Telephone (DECT) system. The power amplifier consists of two stages with all matching structures on chip and has a total area of 1.84 mm2. At -2 dBm input power and 3.6 volts, the typical power amplifier achieves 26 dBm output power with 30% power-added efficiency, while o... View full abstract»

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  • GaAs MMIC based components and frontends for millimeterwave communication and sensor systems

    Publication Year: 1995, Page(s):83 - 86
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    In the millimeter wave region several communication and sensor systems are emerging which presently are served only by III/V based technologies. First sensor systems of relevant volume market are tested at 76 GHz for automotive sensors, with other systems operating at 60 GHz and 94 GHz. For mm-wave communication systems volume applications arise at 38 GHz for the interconnection of PCN cells. This... View full abstract»

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  • New receiver architecture based on SAWs

    Publication Year: 1995, Page(s):205 - 214
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    This paper describes a basically new receiver architecture that has been realized to address short range RF link (primarily in the 200 to 960 MHz UHF band) applications. With no adjustments or critical PC board layouts to contend with, this new SAW-based receiver demonstrates superior range performance compared to conventional receivers. The new receiver operates from a 3 volt lithium button cell ... View full abstract»

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  • Advanced MMIC components for Ka-band communications systems. A survey

    Publication Year: 1995, Page(s):11 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    A number of civil applications such as motion sensors and communications systems are planned to use the Ka-band frequency range. An MMIC chip set for the realization of the millimeter-wave front-end has been developed. The key MMIC circuit functions for Ka-band communication systems have been fabricated. Low noise amplifiers, a medium power amplifier, mixers and a dielectric resonator oscillator (... View full abstract»

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  • A test target generator for wideband pulsed Doppler radars

    Publication Year: 1995, Page(s):109 - 111
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    A test target simulator (TTS) based on a fiber-optic delay line (FODL) has been designed for realistic testing and characterizing of wideband pulsed Doppler radars. The TTS can simulate one or two targets at different radar cross sections (RCSs), different Doppler, and different ranges in the presence of uncorrelated noise or interference. With one target, clutter and multipath effects can also be... View full abstract»

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  • A C-band beam-forming matrix for phased-array antenna applications

    Publication Year: 1995, Page(s):189 - 192
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1096 KB)

    A design description and measured performance of a modular beam-forming matrix (BFM) are presented. Advanced GaAs monolithic microwave integrated circuit (MMIC) phase shifter and attenuator designs ensure repeatable performance and small size. A novel BFM integration approach is used which ensures state-of-the-art performance, low mass, and high reliability, as well as low-risk/low-cost assembly. ... View full abstract»

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  • Recent advances on millimeter wave PCN system development in Europe-an invited survey

    Publication Year: 1995, Page(s):3 - 6
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    The possibility of applying millimeter waves in various areas in the commercial arena has a long history, as the technical advantages being offered by such systems have been known for more than 3 decades. The necessity of turning their attention away from the military sector towards commercial products has forced more and more companies to look at millimeter wave communications very thoroughly. As... View full abstract»

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  • Coded 24 GHz Doppler radar sensors: a new approach to high-precision vehicle position and ground-speed sensing in railway and automobile applications

    Publication Year: 1995, Page(s):101 - 104
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Coded 24 GHz Doppler sensors have been realized to perform high-precision non-contact vehicle position and speed measurements. Encoding the radar signal with a spread-spectrum code is the key to a significantly enhanced sensitivity combined with a range selectivity of the sensor. The novel system concept establishes a high-performance low-cost vehicle Doppler radar system with very high measuremen... View full abstract»

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  • A double-polysilicon bipolar process with a 0.3-μm minimum emitter width and NMOS transistors for low power wireless applications

    Publication Year: 1995, Page(s):33 - 36
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    A 0.6-μm 3.5-V silicon bipolar process is developed for low power and high speed operation in wireless applications. The process features 35-GHz fT bipolar transistors with a 0.3-μm electrical emitter width, lateral pnp transistors, polysilicon-to-n+ plug capacitors, NMOS transistors with a 10-nm gate oxide layer for low on-resistance, and inductors fabricated using a d... View full abstract»

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  • High-resolution adaptive nulling performance for a lightweight agile EHF multiple beam antenna

    Publication Year: 1995, Page(s):181 - 184
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The design, fabrication and measured performance of a lightweight high-resolution adaptive nulling EHF multiple beam antenna (MBA) are addressed. A 127-beam MBA and a four-channel RF nulling network operating over the 43.5 to 45.5 GHz band are used to adaptively null a jammer in anechoic chamber measurements. Lightweight feed horns connected to waveguide transmission lines controlled by ferrite sw... View full abstract»

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  • Mixed technologies for microwave multichip module (MMCM) applications-a review

    Publication Year: 1995, Page(s):73 - 81
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    Extensive use of MMICs and T/R (Transmit/Receive) modules in systems for commercial and military communications are demanding low weight, critical dimensions governed by antenna grid spacing, cost and reliability. Those requirements have led major companies to develop “mixed” packaging technologies. “Mixed” means that: combined signals like high frequency and low power logi... View full abstract»

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