IS 8201 : 1976 Specification for High Frequency Wideband Matching Transformer

1 Scope

1.1 This standard lays down the methods of tests and generalrequirements applicable to high frequency (hf) wideband impedancematching transformers (baluns) used for balanced to unbalancedcoupling and impedance transformation, in electronic andtelecommunication "equipment.

1.1.1 The transformers covered are meant for operation overfrequency range 1.5 to 30 MHz having unbalanced impedances between50 and 75 ohms or balanced impedances between 50 and 600 ohms.

1.2 The matching transformers covered include:

a) high power matching transformers for transmitting systems formatching balanced or unbalanced feeder sources and loads over awide range of impedance ratios, and

b) low power matching transformers for receiving systems formatching balanced antenna and unbalanced transmission lines over awide range of impedance ratios.