High Voltage UWB Horn Antennas

  • P. D. Smith
  • C. J. Brooker


Antenna structures capable of supporting (essentially) transverse electromagnetic (TEM) spherical waves are characterised by their frequency independence over a wide band width, making them ideal candidates for transient field radiation. In particular the triangular plate configuration of the TEM horn is of interest for a variety of directive wide-band applications including ultrawideband radar pulse transmission [1] and feeds for paraboloidal reflector antenna systems [2]. The basic design is founded upon idealised, infinitely long, conical antennas which have been studied by several authors including [3] and [4]. However in producing practical antennas which optimise the desired characteristics of the radiated pulse train, several modifications are required to accommodate the presence of high strength dielectric media preventing breakdown at high voltage and high pulse repetition frequency operation. In particular the dielectric/air boundary must be shaped to minimise reflection of energy at the interface.


Breakdown Voltage Pulse Repetition Frequency Full Width Half Maximum Time Domain Reflectometry Marx Generator 
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  1. 1.
    D.M. Parkes, M.F. Lewis, R.L.S. Devine, K. Trafford and D. Richardson, Practical Measurements using Ultrawideband Radar. Ultrawideband Radar, SPIE Vol. 1631, pp 232–242 (1992).Google Scholar
  2. 2.
    E.G. Farr and C.E. Baum, Prepulse associated with the TEM feed of an Impulse Radiating Antenna. Sensor and Simulation Note 337 (1992).Google Scholar
  3. 3.
    A.P. Lambert, S.M. Brooker and P.D. Smith, Calculation of the Characteristic Impedance of TEM Horn Antennas using the Conformal Mapping Approach. IEEE Trans. Antennas Propagat. AP-43, 47–53 (1995).Google Scholar
  4. 4.
    F.C. Yang and K.S.H. Lee, Impedance of a two-conical-plate transmission line. Sensor and Simulation Note 221 (1976).Google Scholar
  5. 5.
    C.A. Frost, T.H. Martin, P.E. Patterson, L.F. Rinehart, G.J. Rohwein, L.D. Roose, J.F. Aurand, M.T. Buttram, Ultrafast gas switching experiments, Proc. 9th IEEE Pulsed Power Conference, pp 491–494 (1993).Google Scholar
  6. 6.
    W.R. Cravey, E.K. Freytag, D.A. Goerz, P. Poulsen, P.A. Pincosy, Picosecond High Pressure Gas Switch Experiment, Proc. 9th IEEE Pulsed Power Conference, pp 483–486 (1993).Google Scholar
  7. 7.
    Baum C.E., Brewster-angle interface between flat-plate conical transmission lines. Sensor and Simulation Note 389 (1995).Google Scholar
  8. 8.
    C.E. Baum and A.P. Stone, Transient Lens Synthesis: Differential Geometry in Electromagnetic Theory, Hemisphere Publishing Corporation (1991).Google Scholar
  9. 9.
    C.J. Brooker and P.D. Smith, Ultra Wide Band Antenna, UK Patent Application 9410274, (1994).Google Scholar
  10. 10.
    Booker S.M., Lambert A.P. and Smith P.D., A calculation of surface impedance effects on transient antenna radiation. Proc. International Symposium on Electromagnetic Theory (URSI), pp 480–482 (1995).Google Scholar
  11. 11.
    Baum C.E., Low frequency compensated TEM horn. Sensor and Simulation Note 377 (1995).Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • P. D. Smith
    • 1
  • C. J. Brooker
    • 2
  1. 1.Applied ElectromagneticsSt Andrews, FifeUK
  2. 2.Defence Research AgencySevenoaks, KentUK

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