fringing field effect on input impedance in Micro strip antenna

Thread Starter

yef smith

Joined Aug 2, 2020
293
Hello,In microstrip patch antenna manual they say that as we increase W there will be more radiation because of fringing field increase then
"Q will reduce " and impedance will reduce.
Why Q will reduce and input impedance will reduce.
Is there some physical logic so i could understand the last part of the claim?
Thanks.
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Thread Starter

yef smith

Joined Aug 2, 2020
293
Hello Nsaspook,so given the equivalent form bellow and the formulas for B and G
if W increases both B and G increases,thus Zin increases.
so the logic in your paper says otherwise?
also Why Q will decrease?
How can i see physically the effect on the bandwidth?
Thanks.
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