Patent ID: 6885348

Claim:
A test chamber for testing a frequency response of an output for a low band antenna array having a plurality of monopole antennas by providing an RF (radio frequency) test signal into an interior of said test chamber, comprising: (a) a rectangular shaped base; (b) first and second side walls extending perpendicularly upward from said base, a rear wall extending perpendicularly upward from said base and a front wall extending perpendicularly upward from said base, one end of each of said first and second side walls being attached to a separate one of the opposed ends of said front wall and the other end of each of each of said first and second side walls being attached to a separate one of the opposed ends of said rear wall to form a rectangular shaped assembly of upstanding walls; (c) a layer of microwave absorptive foam affixed to upper surface of said base and the interior of said first and second side walls, said front wall and said rear wall; (d) a rectangular shaped lid mounted on a upper edge of said rectangular shaped assembly of upstanding walls, said rectangular shaped lid being removable from said rectangular shaped assembly of upstanding walls, said rectangular shaped lid having a centrally located opening adapted to receive said low band antenna array; (e) a probe mounted in the interior of said test chamber, said probe providing said RF test signal, said probe including: (I) a foam spacer; (II) a non-metallic pipe affixed to an upper surface of said foam spacer; and (III) a cooper wire wound around the exterior of said non-metallic pipe; and (f) a cable positioned within the interior of said test chamber, said cable being connected to said copper wire at one end thereof said cable extending through an opening within the front wall of said test chamber, said cable having a female connector attached to the opposite end thereof.