Stripline load. RU patent 2510901.

IPC classes for russian patent Stripline load. RU patent 2510901. (RU 2510901):

H01P1/26 - WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)

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FIELD: physics, radio.

SUBSTANCE: invention relates to microwave equipment, particularly devices for summation (division) of microwave signals, and can be used to sum up (divide) microwave signals in feeder circuits of communication equipment, radar devices, television and measuring equipment. A microwave signal adder, having a symmetrical tee, having an output arm, two input quarter-wave arms situated on opposite sides of the output arm, includes parallel-connected switching diodes which are connected at a distance equal to a quarter of the wavelength from the branch point of the tee, and the output arm is in form of a quarter-wave section of a coupled line, for which switching electrodes are further connected in parallel at both ends of the secondary line.

EFFECT: reduced loss of the microwave signal arriving from one input to the output without matching the second input, and preserving good matching at the output side without matching at one of the inputs.

1 dwg

The invention relates to the technique of microwave and can be used in antenna-feeder and transmitting devices as agreed target loads or equivalent coaxial antenna in or strip SHF paths with a high level of pulse power.

Famous strip load containing strip Explorer, installed between the absorbing plates, placed on a metal basis. Strip conductor performed with increasing thickness of the entrance load (the Patent for the invention № 2325739). This device is taken as a prototype.

The disadvantage of the device, taken as a prototype, is the existence of a gap between the strip Explorer and absorbing plates, which reduces electrical load strength when working in a pulse mode and in excess of the average power microwave signal some level, increases the possibility of catastrophic failure.

The main task of which solution the aim of the proposed technical solution is to increase electric strength load when working in a pulse mode, and ensuring the health load after exposure to RF signal power is certainly greater than allowable power.

Technical the result, achieved in the implementation of the proposed technical solution is to provide the necessary electrical strength load when working in a pulse mode and guaranteed the preservation of the health of the load after the filing of the microwave signal with an average capacity exceeding permissible power.

The goal of the project is achieved by the fact that, in the famous strip load containing strip Explorer, installed between the absorbing plate, located on a metal basis strip conductor made adjacent to absorbing plates, with the width of the strip Explorer smooth or discrete increases from the input load to its end, at the entrance dimensions strip Explorer provide an impedance equal to the impedance of the input lines of transmission absorbing plate is made of material with high specific heat conductivity and complex magnetic permeability.

Provided by the applicant, the analysis of the level of technology has allowed to establish that the analogues, characterized by a collection of signs, all signs identical declared strip load, no. Therefore, the claimed solution meets the condition of patentability of "novelty".

Search result of known solutions in this field of technology with the aim of revealing signs that match the distinctive features of the prototype of the characteristics of the proposed technical solution, showed that they do not follow explicitly the prior art. Of particular by the applicant prior art revealed no known impact provided the essential features of the proposed technical solution transformations on the achievement of specified technical result. Therefore, the claimed solution meets the condition of patentability of "inventive step".

Figure 1 shows the design of the strip load.

Strip payload contains strip Explorer 1, absorbing plate 2 and metal base 3.

Strip load works as follows.

Microwave signal received at the input of the load is distributed along the strip Explorer, and the space between the strip conductor and metal grounds, filled with absorbing plates, appears electromagnetic field interacting with absorbing material of the plates. The presence of complex magnetic permeability leads to the absorption of the energy of the electromagnetic field due to, for example, fluctuation boundary of the domain structure and its transformation into thermal energy. Heat energy is due to the high thermal conductivity of absorbing plates transmitted metal bases. No air gap between the strip Explorer and absorbing plates increases electric strength strip load when working in a pulse mode, and if the average power over the permissible temperature absorbing plates is close to the Curie point at which the complex nature of magnetic permeability disappears and the absorption is reduced. When power is reduced incoming RF signal temperature absorbing plates is reduced, all features of the strip load restored.

Strip load containing strip Explorer, installed between the absorbing plates, placed on a metal basis, while the input load dimensions strip Explorer done with wave impedance equal to the impedance of the input transmission lines, wherein strip conductor performed adjacent to absorbing plates, the width of the strip Explorer smooth or discrete increases from the input load to its end, and absorbing plate is made of material with high thermal conductivity and complex magnetic permeability.