Helical antenna with improved temperature characteristics

Claim 2

A helical antenna with improved temperature characteristics comprising: an antenna housing; a capacitive cylinder within said housing; a helix coupled with said cylinder; and a condensable fluid enclosed within the helix whereby heat energy is distributed uniformly along said helix by the condensation of said fluid.

Claim 3

A helical antenna with improved temperature characteristics comprising: an antenna housing; a capacitive cylinder within said housing; and a helix coupled with said cylinder said helix consisting of a number of turns of a length of hollow metal tubing closed at both ends, a quantity of a condensable fluid within said tubing, and means for transporting said fluid within said tubing whereby heat energy is distributed by vaporization of said fluid and whereby said fluid when condensed is returned by said fluid transport means.

Claim 4

A helical antenna with improved temperature characteristics comprising: an antenna housing; a capacitive cylinder within said housing; and a helix coupled with said cylinder said helix consisting of a number of turns of a length of hollow metal tubing closed at both ends, a quantity of a condensable fluid within said tubing, and means for transporting said fluid within said tubing whereby heat energy is distributed by vaporization of said fluid and whereby said fluid when condensed is returned by said fluid transport means.

Claim 5

The helical antenna of claim 2 wherein said fluid transport means comprises capillary action.

Claim 6

The helical antenna of claim 2 wherein said fluid transport means comprises gravity.

Claim 7

A helix having uniform heat distribution properties for use with high power transmitting antennas comprising: a number of turns of a hollow metal tubing sealed at both ends; at least one layer of porous capillary material on the inner surface of said tubing; and a quantity of condensable fluid within said tubing for distributing said heat, whereby said heat is transported within said helix by the condensation cycle of said fluid and said fluid is transported within said helix by capillary transport within said material.

Claim 8

A helix having uniform heat distribution properties for use with high power transmitting antennas comprising: a number of turns of a hollow metal tubing sealed at both ends; at least one layer of porous capillary material on the inner surface of said tubing; and a quantity of condensable fluid within said tubing for distributing said heat, whereby said heat is transported within said helix by the condensation cycle of said fluid and said fluid is transported within said helix by capillary transport within said material.

Claim 9

The helix of claim 5 wherein said tubing comprises a metal selected from the group consisting of copper, silver, and aluminum.

Claim 10

The helix of claim 5 wherein said tubing comprises silver coated copper.

Claim 11

The helix of claim 5 wherein said capillary material is selected from the group consisting of cotton, wool, felt and fiberglass.

Claim 12

The helix of claim 5 wherein said fluid comprises a liquid selected from the group consisting of water, ketones, and alcohols.

Claim 13

The helix of claim 5 wherein said fluid is a fluorinated hydrocarbon.

Claim 14

The helix of claim 5 further including a braideD metal sleeve within said tubing for supporting said capillary material against the inner walls of said tubing.

Claim 15

An improved helical antenna of the type having a capacitive cylinder and a helix coupled within a housing wherein the improvement comprises: a helix having a number of turns for imparting inductance to said antenna, said helix further comprising a length of silver coated copper tubing partially evacuated and sealed at both ends, a woven cotton wick continuously extending along the inner walls of said tubing, a braided copper mesh extending concentrically within said tubing and supporting said wick against said tubing walls, and a sufficient quantity of water to saturate said wick, wherein heat energy generated by the operation of the antenna is continuously distributed from hotter to cooler regions of the helix by the evaporation and condensation of the water, and whereby the water is returned to the hotter regions of the helix by capillary transport through said wick.

Claim 16

An improved helical antenna of the type having a capacitive cylinder and a helix coupled within a housing wherein the improvement comprises: a helix having a number of turns for imparting inductance to said antenna, said helix further comprising a length of silver coated copper tubing partially evacuated and sealed at both ends, a woven cotton wick continuously extending along the inner walls of said tubing, a braided copper mesh extending concentrically within said tubing and supporting said wick against said tubing walls, and a sufficient quantity of water to saturate said wick, wherein heat energy generated by the operation of the antenna is continuously distributed from hotter to cooler regions of the helix by the evaporation and condensation of the water, and whereby the water is returned to the hotter regions of the helix by capillary transport through said wick.