Answers are grounded in this paper and cite their sources.
The characteristics of a circular patch microstrip antenna with a top-loaded monopole feed are investigated. Air is used as the dielectric substrate. The distance between the radiating patch and ground plane is ~0.15λ0. The patch is excited in the TM01 mode. An impedance bandwidth (SWR < 2) of 50% and an average gain of 5 dBi are obtained.
No takes yet. Share an insight, caveat, or question.
Chan et al. (1999) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: