This article describes the development and testing of a suite of high-voltage pulse antennas for IEMI susceptibility testing. The antennas are designed to operate with pulses up to 33 kV from a common solid state double exponential pulse generator, and to be light enough to operate on a standard EMC test mast. A broadband (hyperband) antenna intended to transmit the full pulse spectrum and two resonant (mesoband) antennas to produce damped sinusoidal pulses are presented. The antennas were prototyped using full wave numerical modelling and tested in an anechoic chamber in the frequency domain and with a high voltage pulse generator.

A robust lightweight antenna for testing immunity of equipment to intentional electromagnetic interference (IEMI), based on a planar Vivaldi design, is described, along with simulated and measured test results.

An antenna for testing immunity of equipment to intentional electromagnetic interference (IEMI) is described, along with simulated and measured test results which show a good agreement and demonstrate the high-voltage operation.

A resonant dipole antenna for testing immunity of equipment to intentional electromagnetic interference (IEMI) is described, along with simulated and measured test results which are in good agreement and demonstrate the high voltage operation.

This paper describes the design, simulation, and measurement of a tuneable 9.365-GHz aperiodic Bragg resonator. The resonator utilizes an aperiodic arrangement of non ( $\lambda $ /4) low-loss alumina plates ( ${\mathcal{ E}}_{r}= 9.75$ , loss tangent of $\approx 1 \times 10^{-5}$ to $2 \times 10^{-5}$ ) mounted in a cylindrical metal waveguide. Tuning is achieved by varying the length of the center section of the cavity. A multi-element bellows/probe assembly is presented. A tuning range of 130 MHz (1.39%) is demonstrated. The insertion loss $S_{21}$ varies from −2.84 to −12.03 dB while the unloaded Q varies from 43 788 to 122 550 over this tuning range. At 10 of the 13 measurement points, the unloaded Q exceeds 1 00 000, and the insertion loss is above −7 dB. Two modeling techniques are discussed; these include a simple ABCD circuit model for rapid simulation and optimization and a 2.5-D field solver, which is used to plot the field distribution inside the cavity.

This paper describes the design and measurement of a broad tuning aperiodic Bragg resonator at X-band. The resonator utilizes an aperiodic arrangement of non (λg/4) low loss alumina plates (εr=9.75, loss tangent of ~1 to 2×10-5) mounted in a cylindrical metal waveguide. The initial results demonstrate a spurious free tuning range of 100MHz. The insertion loss, S21, varies from -5.6dB to -4dB while the unloaded Q varies from 40,000 to 60,000 over the tuning range. The loaded Q varied from 20,000 to 23,000. It is also possible to tune over a range of 400MHz with similar unloaded Qs up to 64,000, but on occasion the required TE011 mode passes through several lower Q modes which therefore degrades the unloaded Q of the wanted mode.