Connection of a plurality of devices to a circular waveguide
First Claim
1. Microwave apparatus comprising:
- a cylindrical waveguide wherein microwave energy is transmitted via propagation of a circular wave in a TE01 mode;
a hollow cylinder made from a material with a permittivity greater than the permittivity of air, a surface of said cylinder being clad with an electrically conductive material that has a first and a second electrically non-conductive tapered slot, said slots being relatively wide at the distal end of said cylinder and relatively narrow at the proximal end thereof, the radius of the exterior surface of said cylinder being less than the radius of the interior surface of said waveguide; and
means connected to said waveguide and said cylinder for coaxially maintaining said cylinder within said waveguide with said proximal end adjacent to an end of said waveguide, whereby a propagation of the circular wave through said waveguide to said cylinder causes a portion of said energy to be provided by each of said slots at the proximal end of said cylinder.
2 Assignments
0 Petitions
Accused Products
Abstract
A hollow cylinder that has a permittivity greater than the permittivity of air is coaxially disposed within a waveguide with the proximal end of the cylinder coplanar with one end of the waveguide. The cylinder has a metal clad surface wherein a plurality of tapered slots that are narrowest at the proximal end of the cylinder and widest at the distal end thereof. The slots are coupled to respective amplification devices, thereby causing the waveguide to be terminated in an impedance substantially equal to impedances of the devices connected in series. Microwave power is transmitted through the waveguide via propagation of a wave in the TE01 mode. When the wave propagates to the cylinder, the power is transmitted to the devices via the electric fields within the slots at the proximal end of the cylinder. The wave propagates from the cylinder in response to the power being provided by the devices.
-
Citations
11 Claims
-
1. Microwave apparatus comprising:
-
a cylindrical waveguide wherein microwave energy is transmitted via propagation of a circular wave in a TE01 mode; a hollow cylinder made from a material with a permittivity greater than the permittivity of air, a surface of said cylinder being clad with an electrically conductive material that has a first and a second electrically non-conductive tapered slot, said slots being relatively wide at the distal end of said cylinder and relatively narrow at the proximal end thereof, the radius of the exterior surface of said cylinder being less than the radius of the interior surface of said waveguide; and means connected to said waveguide and said cylinder for coaxially maintaining said cylinder within said waveguide with said proximal end adjacent to an end of said waveguide, whereby a propagation of the circular wave through said waveguide to said cylinder causes a portion of said energy to be provided by each of said slots at the proximal end of said cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A microwave amplifier comprising:
-
a first amplifier stage; a second amplifier stage; a pair of cylindrical waveguides; a pair of hollow cylinders made from a material with a permittivity greater than the permittivity of air, one surface of each of said cylinders being clad with an electrically conductive material that has a first and a second electrically non-conductive tapered slot therein, said tapered slots being relatively wide at the distal ends of said high permittivity cylinders and relatively narrow at the proximal ends thereof, the radius of the exterior surface of said high permittivity cylinders being less than the radius of the interior surface of said waveguides; and means for coaxially maintaining one of said high permittivity cylinders within one of said waveguides and the other of said high permittivity cylinders within the other of said waveguides, an end of each of said waveguides being adjacent to the proximal end of the high permittivity cylinder therein, said means including means for respectively coupling inputs of said first and second amplifier stages to an electric field within the first and second tapered slots at the proximal end of one of said high permittivity cylinders and for respectively coupling outputs of said amplifier stages to an electric field within the first and second tapered slots at the proximal end of the other of said high permittivity cylinders. - View Dependent Claims (9, 10, 11)
-
Specification