Body-worn Personal Communications Apparatus

Abstract

A body-worn personal communications apparatus that includes a physically-short electric antenna that is physically smaller in at least one dimension than its electrical length in that same dimension, a transceiver connected to the antenna, a microphone connected to the transceiver, and a casing having a height that is less than its width and its length. The microphone is disposed within the casing, and the antenna is mounted such that the one dimension of the antenna is aligned with the height of the casing.

1 . A body-worn personal communications apparatus comprising:
 a physically-short electric antenna that is physically smaller in at least one dimension than its electrical length in that same dimension;   a transceiver connected to said physically-short electric antenna;   a microphone connected to said transceiver; and   a casing having a width, a length and a height, said height being less than said width and less than said length,   wherein said transceiver is disposed within said casing,   wherein said physically-short electric antenna is mounted such that said one dimension of said physically-short electric antenna is aligned with said height of said casing,   wherein said physically short electric antenna is designed so as to not require manipulation by a user.   
   
   
       2 . The body-worn personal communications apparatus of  claim 1 , wherein said physically-short electric antenna is a helical antenna. 
   
   
       3 . The apparatus of  claim 1 , wherein said physically-short electric antenna is a meander-line antenna. 
   
   
       4 . The apparatus of  claim 1 , wherein said microphone is located at an end of said physically-short electric antenna. 
   
   
       5 . The apparatus of  claim 4 , wherein said physically-short electric antenna is formed from a coaxial cable that provides electrical connections between said microphone and said transceiver. 
   
   
       6 . The apparatus of  claim 4 ,
 wherein said physically-short electric antenna is formed from a hollow wire,   wherein a first electrical connection between said microphone and said transceiver is provided by said hollow wire, and   wherein a second electrical connection between said microphone and said transceiver is provided by a conductor enclosed by said hollow wire.   
   
   
       7 . The apparatus of  claim 5 , wherein said microphone provides a low impedance at radio frequencies to thereby enable said coaxial cable forming said physically-short electric antenna to act as an inductive stub. 
   
   
       8 . The apparatus of  claim 4 , wherein said microphone provides a top loading to said physically-short electric antenna. 
   
   
       9 . A body-worn personal communications apparatus comprising:
 a casing having a width, a length and a height, said height being less than said width and less than said length;   a physically-short electric antenna that is physically smaller in at least one dimension than its electrical length in that same dimension; and   a microphone located at an end of said physically-short electric antenna,   wherein said physically-short electric antenna is mounted such that said one dimension of said physically-short electric antenna is aligned with said height of said casing,   wherein said physically short electric antenna is designed so as to not require manipulation by a user.   
   
   
       10 . The apparatus of  claim 9 , wherein said physically-short electric antenna is a helical antenna. 
   
   
       11 . The apparatus of  claim 9 , wherein said physically-short electric antenna is a meander-line antenna. 
   
   
       12 . The apparatus of  claim 9 , wherein the end of said physically-short-electric antenna where said microphone is located is distal from said casing. 
   
   
       13 . The apparatus of  claim 9 , further comprising:
 a transceiver,   wherein said physically-short electric antenna is formed from a coaxial cable that provides electrical connection between said microphone and said transceiver.   
   
   
       14 . The apparatus of  claim 9 , wherein said microphone provides a low impedance at radio frequencies to thereby enable said coaxial cable forming said physically-short electric antenna to act as an inductive stub. 
   
   
       15 . The apparatus of  claim 9 , further comprising:
 a transceiver; and   wherein said physically-short electric antenna is formed from a hollow wire,   wherein a first electrical connection between said microphone and said transceiver is provided by said hollow wire, and   wherein a second electrical connection between said microphone and said transceiver is provided by a conductor enclosed by said hollow wire.   
   
   
       16 . The apparatus of  claim 9 , wherein said microphone provides a top loading to said physically-short electric antenna.