It is frequently used as a primary reference in university syllabi, such as for the Rajiv Gandhi Proudyogiki Vishwavidyala (RGPV) and Rajasthan Technical University (RTU) . Antenna and Wave Propagation - K. D. Prasad - Google Books
The book explains radiation fields using alternating current elements, infinitesimal dipoles, and half-wave dipoles. antenna and wave propagation by kd prasad google books link