Abstract
For the first time, an annular slot is used to excite the fundamental TM $_{01 \delta }$ mode of a cylindrical dielectric resonator antenna (DRA). The annular slot has eight pairs of meander lines that make the $E$ -field of the slot nearly uniform. The meander lines can introduce an inductance to the antenna and thus, lower the resonant frequency or equivalently reduce the antenna size. To verify the idea, a prototype operating in the fundamental TM $_{01 \delta }$ mode was designed, fabricated, and measured for 2.4 GHz WLAN applications (2.40–2.48 GHz). The ${S}$ -parameters, radiation pattern, realized gain, and total efficiency are simulated and measured, and good agreement between the simulations and measurements is obtained. As compared with a conventional probe-fed TM $_{01\delta }$ -mode cylindrical DRA, our antenna has a size reduction of 43% while providing a measured 10 dB impedance bandwidth of 18.0%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
