Abstract
A reciprocity theorem1 widely used in the design of antennas treats antennas as part of an electronic circuit and relates the input and output currents and voltages. Some limited work has been done to obtain reciprocity theorems for the electromagnetic fields themselves,2 but this work does not provide explicit mathematical expressions relating to the propagation of reciprocal fields. We give a proof for the following theorem. If two wave fields taken one at a time within a source-free, isotropic, and homogeneous medium are composed only of homogeneous plane waves so that their angular spectra are related by they are defined to be reciprocal so that the forward propagator in a diffraction integral for one field is the complex conjugate for the inverse propagator in a similar inverse diffraction integral for the other field.
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.
