Abstract
The energy storage efficiency of a microwave pulse compressor (MPC) formed by an inductive iris, a straight rectangular waveguide, and an <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$H$ </tex-math></inline-formula> -plane T-junction is theoretically and experimentally studied. The MPC storage efficiency is examined considering a cavity drive source with limited pulse duration. In this context, a theoretical model is developed to conclude to an optimal MPC cavity design taking into account the drive source pulse duration. The proposed theoretical model addresses both steady and transient state calculations at noncritical cavity-coupling conditions. The numerical results show that the MPC cavity storage efficiency optimization is feasible by selecting properly the iris’s opening width as well as the lengths of the straight waveguide cavity and the T-junction’s side arm. The validity of the theoretical design guidelines is verified by independent simulation as well as by experiments at 1.3 GHz.
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