Introduction to Radio Frequency Design (Radio Amateur's Library, Publication No. 191.) By Wes H. Hayward 1995 | 383 Pages | ISBN: 0872594920 | PDF | 19 MB
R. T. Irish, "SWR explained : a radio amateur’s guide to electromagnetic waves, transmission lines and VSWR" English | 2014 | ISBN: 1905086997 | PDF | pages: 59 | 7.3 mb