Electrostatic overvoltage protection device

Abstract

An electrostatic overvoltage protection device for use in remotely mountable weatherproof bi-directional, half-duplex switching amplifier system designed to provide maximum range for low power half-duplex radios such as Spread Spectrum radio transceivers in which a conductor is connected between the signal input and a source of reference potential having a length selected to be one quarter of the wavelength of a preselected desired signal band frequency and is one of a trace on a circuit board and wire.

1 . In a telecommunications device having a signal input, an electrostatic overvoltage protection device, comprising: 
 a conductor connected between said signal input and a source of reference potential.    
   
   
       2 . The electrostatic overvoltage protection device of  claim 1 , wherein: 
 said conductor has a length selected to be one quarter of the wavelength of a desired signal band frequency, and    the source of reference potential is a ground potential.    
   
   
       3 . The electrostatic overvoltage protection device of  claim 2 , wherein: 
 the conductor of one quarter wavelength is one of a trace on a circuit board and a wire.    
   
   
       4 . The electrostatic overvoltage protection device of  claim 2 , further comprising: 
 a T-connector having an external housing and with a through conductor between the main end terminals, and a side conductor connected at one end to the to said through conductor and at the other end to the side end terminal of said T-connector, and    a shorting structure connecting said other end of said side conductor to said T-connector external housing, wherein    said conductor of one quarter wavelength is measured from said one end of said side conductor to said shorting structure.    
   
   
       5 . The electrostatic overvoltage protection device of  claim 4 , wherein: 
 said shorting structure further comprises a conductive cap with a conductive pin adapted to fit into said T-connector side end terminal and thus make electrical connection between the combination of said conductive pin and said side conductor and said T-connector external housing.