Title :
A dyadic Green´s function for the plano-concave quasi-optical resonator
Author :
Heron, P.L. ; Schwering, F.K. ; Monahan, G.P. ; Mink, J.W. ; Steer, M.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
An approximate dyadic Green´s function is derived for a quasi-optical resonator. The Green´s function is comprised of resonant and nonresonant terms corresponding to coupling of the modal and nonmodal resonator fields. The effect of losses due to diffraction, finite reflector conductivity and radiation are included. Experimental one- and two-port measurements of antennas in an X-band cavity compare favorably with theoretical predictions.<>
Keywords :
Green´s function methods; losses; resonators; X-band cavity; diffraction; dyadic Green´s function; finite reflector conductivity; losses; modal resonator field; nonmodal resonator fields; plano-concave quasi-optical resonator; radiation; Antenna measurements; Apertures; Boundary conditions; Conductivity; Current density; Diffraction; Frequency; Green´s function methods; Resonance; Testing;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
