meandering feed of a patch antenna
meandering feed of a patch antenna
(OP)
hi guys, a quick question Re the meandering feed of a patch antenna, do you know of any system/design using such design?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
meandering feed of a patch antenna
|
RE: meandering feed of a patch antenna
There are a variety of 3d EM simulators that would allow you to do design of this nature, but given that most companies won't spring for the cost, you are generally left to using a network analyzer to see what the complex impedance is, putting a meandering feet "guesstimated" to have the needed inductance/capacitance/delay and use trial-and-error from there.
Trial-and-error seems to be what the author is pointing to in the slides where there is a "meandering probe" and plastic screw - a setup that allows him to vary the feedpoint location for matching.
Interesting paper - I saved a copy for myself.
RE: meandering feed of a patch antenna
RE: meandering feed of a patch antenna
RE: meandering feed of a patch antenna
The feed arrangement looks awkward, to carve out an area under the patch to add the meander isn't mechanically friendly. The best way to start designing an antenna is thinking mechanical first, electrical second.
Alot of antenna designs are research only, though potentially useful, many are never used for mechanical or simple tolerance reasons. This one's complicated to build with that meanderline and multilayer board atop it. I haven't seen it in practice.
Nice collection of patch designs in that link. Thanks.