A design theory on broadband patch antennas with slot
Chow, Y.L.
Chen, Z.N.
Lee, K.F.
Luk, K.M.
City Univ. of Hong Kong;
This paper appears in: Antennas and Propagation Society International Symposium, 1998. IEEE
Publication Date: 21-26 Jun 1998
Volume: 2,
On page(s): 1124-1127 vol.2
Meeting Date: 06/21/1998 - 06/26/1998
Location: Atlanta, GA, USA
ISBN: 0-7803-4478-2
References Cited: 2
INSPEC Accession Number: 6118453
Digital Object Identifier: 10.1109/APS.1998.702148
Current Version Published: 2002-08-06
Abstract
Design assumes a set of required properties and then finds a
physical structure as the design solution. The solution is nonlinear and
frequently non-unique, and is therefore time consuming procedures have
to be used. The time required may be greatly reduced, if a theory can be
found to arrive at the design rules and, thus, an initial solution which
is close to the final solution before the adjustment iterations begin.
With the possibility of final iterations, the design theory needs not be
very accurate. The theory, however, has to be simple and clear so that
the effective parameters for adjustments can readily be identified. The
set of such parameters are small to ensure rapid iteration. Since the
solution is non-unique, a small number of parameters are usually
sufficient to reach the desired solution within the usual engineering
tolerance. Since high accuracy is not needed, the theory can be based on
small matrices and simple mathematics, and then be synthesized from
experiments and/or detailed numerical analyses plus, of course, physical
insight. It is known that an antenna patch with a U-slot is broadband,
unlike the ones without slots. The design rules and theory, however,
have not been clear. This paper clarifies these based on the principle
stated above. With the design rules and mechanism understood, other
shape patches and slots such as a W-slot can be synthesized and give
similarly good results
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