The following was contributed by Dr. Allen Podell (he teaches Advanced Wireless Microwave Techniques at Besser Associates and is an expert in microwave engineering). It is a discussion of how T-coils can be derived from a lattice network with two baluns and more importantly, how their 'ideality' (their frequency response) can be extended by including an extra shield wire.

Inspec keywords: baluns; coils; lattice networks

Other keywords: extra shield wire; T-coils; Besser Associates; lattice network; microwave engineering; Dr. Allen Podell; advanced wireless microwave techniques; baluns

Subjects: Filters and other networks; Microwave circuits and devices; Inductors and transformers; Waveguide and microwave transmission line components