A versatile leaky-wave antenna based on stub-loaded rectangularwaveguide .I. Theory
Lampariello, P.; Frezza, F.; Shigesawa, H.; Tsuji, M.; Oliner, A.A.
Antennas and Propagation, IEEE Transactions on
Volume 46, Issue 7, Jul 1998 Page(s):1032 - 1041
Digital Object Identifier 10.1109/8.704806
Summary:A new leaky-wave antenna is presented that possesses many
desirable features and is suitable for application to both the
millimeter-wave and microwave ranges. These desirable features, some of
which are unusual, include a simple configuration, a wide flexibility in
the range of available beamwidths, the ability to control the beamwidth
and the direction of the beam essentially independently, and negligible
cross polarization at all scan angles. The antenna structure consists of
a parallel-plate stub guide of small height, less than a half
wavelength, located off center on the top of rectangular waveguide. The
beamwidth is easily controlled from very wide to very narrow by
adjusting the stub width or location. The article presents the principle
of operation and the theory, employing a new transverse equivalent
network that is accurate, but also simple, so that it permits rapid and
inexpensive numerical calculations
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