A 13-14 Open Cross-Coupling Structure

Abstract

The invention discloses a 13-14 open-type cross coupling structure, which comprises a cover plate, a cavity and resonant columns arranged in the cavity, wherein the cover plate is provided with regulation bolts; the cavity and the resonant columns form four resonant cavities; and a cross coupling component is arranged between two resonant cavities which are not adjacent. The 13-14 open-type cross coupling structure is characterized in that a partition-free open type structure is independently arranged between the first resonant cavity and the second resonant cavity, between the second resonant cavity and the third resonant cavity and between the third resonant cavity and the fourth resonant cavity; and a stair-shaped partition is arranged between the first resonant cavity and the fourth resonant cavity. The 13-14 open-type cross coupling structure has the main characteristics that the 13-14 open-type cross coupling structure is changed into widely-open type cross coupling from an original non-open type cross coupling way to effectively solve the problem that a combiner, a duplexer and the like are difficult to realize on an aspect of a mechanical structure, avoid the problems of isolated islands, signal leakage and the like, and realize a purpose that client indexes are met under a situation that a cavity structure is not changed.

Description

technical field [0001] The invention belongs to the technical field of electronic communication, and in particular relates to a simplified 13-14 open cross-coupling structure for realizing a cavity-rowing structure of communication equipment products. Background technique [0002] We often use 13-14 cross-coupling in communication products, especially in combiners, duplexers and other products. 13-14 The cross-coupling approach creates a + degree or A -degree phase shift, which is superimposed on the sequentially coupled signal, produces one or two transmission zeros outside the passband of the communication product, thereby greatly improving the out-of-band rejection of the communication product. The advantage of using 13-14 cross-coupling can simplify the design of the zero point. In the conventional design, due to the characteristics of the 13-14 nested zero point, islands are prone to appear in the mechanical structure and it is difficult to arrange screws, which leads ...

AI Technical Summary

Problems solved by technology

The advantage of using 13-14 cross-coupling can simplify the design of the zero point. In the conventional design, due to the characteristics of the 13-14 nested zero point, islands are prone to appear in the mechanical structure and it is difficult to arrange screws, which leads to signal leakage and affects electrical performance indicators. The mechanical structure is difficult to realize

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