A Compact Multi-Frequency, High Power Radiating System Combining Dual-Band, Electrically Small Magnetic EZ Antennas and Multi-Frequency Standing Wave Oscillator Sources

作者：Ramon Eric S^*; Tyo J Scott; Ziolkowski Richard W; Skipper Michael C; Abdalla Michael D; Martin Joshua M; Altgilbers Larry L

来源：IEEE Transactions on Antennas and Propagation, 2014, 62(6): 3281-3289.

DOI：10.1109/TAP.2014.2313135

• Electrically small antennas
• high power microwave generation
• mesoband sources
• multifrequency antennas

High power microwave (HPM) sources are typically bulky and massive in order to be able to radiate the extremely high source powers with a good impedance match and low losses. For this reason, it is sometimes difficult to incorporate an HPM antenna onto a desired platform when the available space is small. In previous work, we have adapted an electrically small EZ antenna to operate with a mesoband, quarter-wave oscillator source. The EZ antenna operates over a ground plane, but is conformal and low profile in that the electrical size is on the order of lambda/12, making it attractive for applications where there is sufficient internal space to place a full source, but only limited space outside the platform for the radiating subsystem. Here we extend the capabilities of the oscillator/EZ antenna combination by introducing a dual band design for the antenna and altering the oscillator to produce multiple resonant frequencies. Designs are shown here that operate in the UHF (500-800 MHz) and L-band (1.5-1.8 GHz), but the operation frequencies are essentially arbitrary. This paper shows modeling results that predict high antenna efficiency with electrical sizes of ka < 1 at f = 500 MHz.

• 出版日期2014-6