Scheduled System Maintenance
On Tuesday, September 26, IEEE Xplore will undergo scheduled maintenance from 1:00-4:00 PM ET.
During this time, there may be intermittent impact on performance. We apologize for any inconvenience.

IEEE NTC,Conference Proceedings Microwave Systems Conference

17-19 May 1995

Filter Results

Displaying Results 1 - 25 of 49
  • IEEE NTC '95 The Microwave Systems Conference. Conference Proceedings

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (336 KB)
    Freely Available from IEEE
  • Index

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (60 KB)
    Freely Available from IEEE
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A low cost mixer for wireless applications

    Publication Year: 1995, Page(s):21 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    A new GaAs integrated circuit mixer is presented that services wireless communication requirements. Low cost, small size and good electrical performance are achieved through the use of a one balun-one FET scheme, a mature MESFET process and plastic packaging. Measured data is shown for 900 MHz and 1800 MHz parts. This MMIC mixer offers the best performance-to-price ratio in the marketplace View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Active antenna array with optical interaction for application in radar system

    Publication Year: 1995, Page(s):185 - 188
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    An active antenna array system, capable of switching between sum and difference patterns for radar applications, is explored. The desired phase relationship amongst the antenna elements is synthesized via injection locking. An optical reference signal is transmitted from remote controller through the optical fiber link. The measured patterns agree with the theoretical results View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Recent activities on millimeter wave indoor LAN system development in Japan

    Publication Year: 1995, Page(s):7 - 10
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The necessity for 60 GHz band development in Japan, the features of millimeter wave (MM-wave) indoor LAN, developments needed for its realization, and propagation studies to implement indoor LAN are reviewed. This paper describes a MM-wave minimum delay spread LAN under development in Japan, results of its propagation simulation, absorbable construction materials being considered for the system, a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low cost and compact active integrated antenna transceiver for system applications

    Publication Year: 1995, Page(s):89 - 92
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    An FET transistor and a Schottky barrier mixer diode have been integrated within an inverted patch antenna for transceiver applications. Preliminary results exhibit a 5.5 dB isotropic mixer conversion loss at 6 GHz for an intermediate frequency of 200 MHz with the FET serving as both the transmitter and the local oscillator at 5.8 GHz. The low cost, compact circuit should be useful for communicati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Expanding search code acquisition receiver structure, simulation and analysis

    Publication Year: 1995, Page(s):149 - 152
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    In the area of direct sequence spread spectrum (DSSS) communications, a code phase search is required for coarse code acquisition. In the case of a typical Global Positioning System (GPS) receiver, the receiver acquisition of the C/A code narrows the uncertainty for Precise (P) code acquisition. Depending upon the pdf of the code phase uncertainty, various search algorithms may be employed for P c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microwave and millimetre-wave technology requirements for the European Fourth Framework programme

    Publication Year: 1995, Page(s):15 - 17
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    The `Advanced Communications Technologies and Services' (ACTS) research programme forms part of the European Fourth Framework and addresses the communications environment of the first decade of next century. This paper sets out the European Commission philosophy of integration of UMTS, satellite-mobile, wireless-LAN and mm-wave broadband mobile systems into a single structure and the research meth... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • MMIC antenna front end for optically distributed MMW antennas

    Publication Year: 1995, Page(s):171 - 174
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    It is well documented that fiber optic remoting of information to the millimeter wave distributed antennas is viable only when the modulated carrier is constructed at the antenna front end. The MMIC based antenna front is designed to perform three important functions of (i) generation of phase and frequency stable local oscillator, (ii) down-conversion (up-conversion) of the modulated RF (IF) carr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An 18 GHz circularly polarised multilayer active microstrip antenna subarray using MMIC amplifiers

    Publication Year: 1995, Page(s):163 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The paper presents an 18 GHz circularly polarised multilayer active antenna subarray using MMIC amplifiers. With the advantage of a multilayer structure, the radiation patterns from the antenna side are not affected by the radiation from circuit side. An extra gain of 15.46 dB has been measured in comparison to the passive array. This type of array can be the ideal building block for large microst... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A highly efficient, small size 50 watt power amplifier for mobile satcom applications

    Publication Year: 1995, Page(s):145 - 147
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    This paper describes the development of a 50 watt power amplifier operating in the Ku-band satellite uplink frequency range of 14-14.5 GHz. High efficiency (greater than 25%), very small size (less than 35 cubic inches) and light weight (2.3 lbs) make this amplifier an ideal choice for use in mobile satellite terminals. Details of the development effort, a description of the developed product, and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A low-current linearity sweet spot in HFETs

    Publication Year: 1995, Page(s):25 - 28
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Planar doped HFETs exhibit a narrow bias region of low intermodulation distortion, a linearity sweet spot, at low drain current levels. The bias condition associated with this sweet spot is shown to be near the low-current inflection point of the transconductance versus gate voltage characteristic. It is also shown that the bias condition for the sweet spot can be controlled in dual-gate HFETs. Th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.