This is a good getting-started book. It provides a topical study of various passive and active RF circuits. While it does provide significant depth on any given subject, it is a nice starting place and reference.
it may be an undergraduate microwaves text, but it's probably the clearest i've seen. the basic formulas are all laid out. for theory? read Stratton, Balanis, or Harrington. for application? read Pozar, if it's not some funky obscure waveguide then this book will save you time.
Pretty good book. Recommend Collins over this, just because Collins is more thorough. This is probably my first reading of many... it doesn't seem to be a text that you can just read through and understand everything. Instead, you probably need to make many sweeping passes over it!
An interesting engineering textbook!!! But, in my opinion the microwave superconductivity is better covered in the Nonlinearities in Microwave Superconductivity book by Viktor O. Ledenyov and Dimitri O. Ledenyov!!!