CN104505572A

CN104505572A - Structural high-power double-directional coupler

Info

Publication number: CN104505572A
Application number: CN201410807757.1A
Authority: CN
Inventors: 苗尧飞; 谢建庭; 石勇; 郝冠华; 刘堃
Original assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Current assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Priority date: 2014-12-23
Filing date: 2014-12-23
Publication date: 2015-04-08

Abstract

The invention relates to a structural high-power double-directional coupler, which comprises a box body, a box cover, a main signal conductor, a coupling signal conductor, a main signal conductor isolation support frame, a coupling signal conductor isolation support frame, an N type socket, an SMA type socket, a radio-frequency input port, a radio frequency output port, a first power coupling port, a second power coupling port, a first load matching port and a second load matching port, and the intensity of the coupling signal can be flexibly determined through regulating the space between the main signal conductor and the coupling signal conductor. The structural high-power double-directional coupler has the beneficial effects that a metal cavity structure can bear high-power radio-frequency signals, the use is safe, the structure regulation is free and flexible, the requirements of different coupling degrees in occasions can be met, the structural high-power double-directional coupler is mainly used for the power and reflection power coupling on some high-power radio frequency signals in frequency ranges of the VHF (very high frequency) and UHF (ultra-high frequency) ranges.

Description

The high-power dual directional coupler of structural formula

Technical field

The present invention relates to a kind of high-power dual directional coupler, the particularly high-power amphiorentation coupling of a kind of structural formula.

Background technology

When RF signal power is less, being designed with kinds of schemes and can implementing of dual directional coupler, along with the lifting of RF signal power, in some frequency range of very high frequency(VHF) (VHF) and hyperfrequency (UHF), the design of dual directional coupler can become very difficult, the loss of its radio frequency signal can be converted into heat, must carry out timely radiating treatment, simultaneously, the intensity of two-way coupled signal also can change, and needs just can reach requirement by the adjustment of structure pitch.

Summary of the invention

The invention provides a kind of dual directional coupler scheme using metallic cavity structure to realize, be mainly used in some frequency range of very high frequency(VHF) (VHF) and hyperfrequency (UHF), the directional couple of the radiofrequency signal of hectowatt power can be realized, under solving high-power situation, common directional coupler holds flimsy problem, simultaneously, by the spacing between adjustment main signal conductor and coupled signal conductors, the size of coupled signal can be determined flexibly, concrete technical scheme is, the high-power dual directional coupler of a kind of structural formula, comprise box body, lid, main signal conductor, coupled signal conductors, main signal conductor isolation mount, coupled signal conductors isolation mount, N-type socket, SMA type socket, rf inputs mouth, radio frequency output port, coupling power port one, coupling power port two, load matched port one, load matched port two, it is characterized in that: main signal conductor is installed on box body by main signal conductor isolation mount, main signal conductor two ends are connected with N-type socket respectively, one end is as rf inputs mouth, the other end is as radio frequency output port, coupled signal conductors is ∏ font, two coupled signal conductors respectively by coupled signal conductors isolation mount side by side and parallelly with main signal conductor be installed on box body, each coupled signal conductors two ends are connected with SMA type socket respectively, coupled signal conductors near rf inputs mouth realizes the coupling by signal power, its two ports connected, one end is as coupling power port one, the other end is as load matched port one, during work, coupling power port one exports coupled signal, load matched port one connects 50 Ω loads, coupled signal conductors near radio frequency output port realizes the coupling of reflection signal power, its two ports connected, one end is as coupling power port two, the other end is as load matched port two, during work, coupling power port two exports coupled signal, and load matched port two connects 50 Ω loads.

The invention has the beneficial effects as follows that metallic cavity structure can bear the radiofrequency signal of relatively high power, use safety, structural adjustment freely, flexibly, the occasion that the different degree of coupling requires can be met, be mainly used in some the high-power RF signal in very high frequency(VHF) (VHF) and hyperfrequency (UHF) frequency range, carry out the coupling of power and reflection power.

Accompanying drawing illustrates:

Fig. 1 is structure chart of the present invention.

Fig. 2 is top plan view of the present invention.

Embodiment

As Fig. 1, shown in 2, the box body 1 of the high-power dual directional coupler of structural formula, lid 2, a main signal conductor 3, two coupled signal conductors 4, two main signal conductor isolation mounts 5, two coupled signal conductors isolation mounts 6, two N-type sockets 7, two SMA type sockets 8, calculated by electromagnetic wave simulation software by the physical dimension adjusting each several part, obtain the overall architecture met the demands, box body 1, lid 3, main signal conductor 4, coupled signal conductors 4 materials'use aluminium alloy, electroplate, main signal conductor isolation mount 5, coupled signal conductors isolation mount 6, materials'use polytetrafluoroethylene.

Main signal conductor 3 is installed on box body 1 by main signal conductor isolation mount 5, main signal conductor 3 two ends are connected with N-type socket 7 respectively, one end is as rf inputs mouth 9, the other end is as radio frequency output port 10, coupled signal conductors 4 is ∏ font, respectively by coupled signal conductors isolation mount 6 side by side and parallelly with main signal conductor 3 be installed on box body 1, each coupled signal conductors 4 two ends are connected with SMA type socket 8 respectively for two coupled signal conductors 4; Coupled signal conductors 4 near rf inputs mouth 9 realizes the coupling by signal power, its two ports connected, one end is as coupling power port 1, the other end is as load matched port 1, during work, coupling power port 1 exports coupled signal, and load matched port 1 connects 50 Ω loads; Coupled signal conductors 4 near radio frequency output port 10 realizes the coupling of reflection signal power, its two ports connected, one end as coupling power port 2 12 other end as load matched port 2 14, during work, coupling power port 2 12 exports coupled signal, and load matched port 2 14 connects 50 Ω loads.

When high-power RF signal forward, (rf inputs mouth 9 enters, radio frequency output port 10 goes out) by dual directional coupler time, the ratio of the signal magnitude that coupling power port 1 exports and high-power RF signal magnitude is by coupling power degree index, when high-power RF signals reverse, (radio frequency output port 10 enters, rf inputs mouth 9 goes out) by dual directional coupler time, the ratio of the signal magnitude that coupling power port 2 12 exports and high-power RF signal magnitude is reflection power overlapping index, by coupling power degree and reflection power degree of coupling emulated data curve, two kinds of degree of coupling curve co-insides, and the change with frequency is large and rise.

Claims

1. the high-power dual directional coupler of structural formula, comprises box body (1), lid (2), main signal conductor (3), coupled signal conductors (4), main signal conductor isolation mount (5), coupled signal conductors isolation mount (6), N-type socket (7), SMA type socket (8), rf inputs mouth (9), radio frequency output port (10), coupling power port one (11), coupling power port two (12), load matched port one (13), load matched port two (14), it is characterized in that: main signal conductor (3) is installed on box body (1) by main signal conductor isolation mount (5), main signal conductor (3) two ends are connected with N-type socket (7) respectively, one end is as rf inputs mouth (9), the other end is as radio frequency output port (10), coupled signal conductors (4) is ∏ font, respectively by coupled signal conductors isolation mount (6) side by side and parallelly with main signal conductor (3) be installed on box body (1), each coupled signal conductors (4) two ends are connected with SMA type socket (8) respectively for two coupled signal conductors (4), coupled signal conductors (4) near rf inputs mouth (9) realizes the coupling by signal power, its two ports connected, one end is as coupling power port one (11), the other end is as load matched port one (13), during work, coupling power port one (11) exports coupled signal, and load matched port one (13) connects 50 Ω loads, coupled signal conductors (4) near radio frequency output port (10) realizes the coupling of reflection signal power, its two ports connected, one end is as coupling power port two (12), the other end is as load matched port two (14), during work, coupling power port two (12) exports coupled signal, and load matched port two (14) connects 50 Ω loads.