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directional coupler

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TDtelecom Science and Tech. Development Ltd.

Trademark:TDtelecom

Model NO.:TD102

HS Code:85252029

Standard:ISO9001

Details:

TDtelecom Science and Tech. Development Ltd.

Business Type:

Free Member

China (Mainland)China (Mainland)

Inquiry

Outdoor Splitter and Tap

Trademark:Prevail

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Model NO.:FP Series. FZ Series

Minimum Order:100

Details:

Hangzhou Prevail Optoelectronic Equipment Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Directional Coupler

Details: Directional Coupler DC-FM-318 DC-FM-158...

Car-Cim Services Inc.

Business Type:Manufacturers

Free Member

United StatesUnited States

Inquiry

Directional Coupler

Brand Name:Rine Engineering Private Limited

Details: Rine Engineering Private Limited is one of the leading manufacturers and suppliers of customized sand castings and customized grey iron casting. O...

RINE ENGINEERING PVT LTD

Business Type:Manufacturers

Free Member

IndiaIndia

Inquiry

JM2-directional coupler for CNC machine

Model / Specifications:JM2-Clampling flexible coupling

Structure:Universal

Flexible or Rigid:Flexible

Standard or Nonstandard:Standard

Material:Aluminium

Details: The OEM service :1.With keyway or without keyway 2.The material of aluminum or stainless steel and so on.3.Coupling are available according to you...

Jinan Golden Bridge Precision Machinery Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Directional Coupler

Details: Specification Low V.S.W.R and Insertion LossAvailable for 5 to 30dB coupling valueSilver, Nickel and Tri-Alloy platedCustomer specification will b...

Hosung Technics Co., Ltd.

Business Type:Manufacturers

Free Member

KoreaKorea

Inquiry

Cavity Directional Coupler-coupling value 10dB

Model / Specifications:TS-PCCoM-10

Brand Name:Telestone

Details: a). Low loss b). Compact structure c). Flat response...

Beijing Telestone Communication Technology Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler-SH

Type:Valves

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-direc...

Ningbo Bote Pneumatic Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler-PM

Type:Valves

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-direc...

Ningbo Bote Pneumatic Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler-SP

Type:Valves

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-direc...

Ningbo Bote Pneumatic Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler PM

Type:Valves

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket, recommen...Type: Valves

Ningbo Bote Pneumatic Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Pneumatic and Hydraulic Quick Couplings

Details: Features:1) Uni-directional shut off coupler with an automatic shut off valve built in the socket, recommended for piping of compressed air con...

Ningbo Shunchi Pneumatic Element Factory

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler-PP

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket, recommended f...

Ningbo Bote Pneumatic Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Coupler-PP

Details: Uni-directional shut off coupler with an automatic shut off valve built in the socket, recommended f...

Ningbo Bote Pneumatic Co., Ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

bi-directional hydraulic kits for hydraulic shear,hydraulic crusher,demolition grab,quick coupler

Details: Contactus by: sales(at)ylfpart(dot)com web: www(dot)ylfpart(dot)com We (Xiamen Yonglianfeng Machinery Co.,Ltd) are manufacturer of hydraulic break...

Xiamen YLFpart Co., Ltd

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

quick connect couplings

Details: Hydraulic Quick Coupling and hydraulic plumbingBi-directional shutoff couplings minimize fluid loss when disconnected. Both halves of the coupler,...

Cixi Andong Pengfei Pneumatic Component Manufacturer

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

ISO 7241-A Hydraulic Quick Couplings

Model / Specifications:KZE-PF

Material:Carbon steel. brassstainless steel

Brand Name:PUREMIX

Details: Hydraulic Quick Coupling Bi-directional shutoff couplings minimize fluid loss when disconnected. Both halves of the coupler, body and nipple, cont...

Cixi Andong Pengfei Pneumatic Component Manufacturer

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

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Related Products
  • Coupler-SP Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-directional shut off coupler with an automatic shut off...
  • Coupler-PM Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-directional shut off coupler with an automatic shut off...
  • Coupler-SH Uni-directional shut off coupler with an automatic shut off valve built in the socket,recommended for piping of compressed air connectionsBi-directional shut off coupler with an automatic shut off...
  • Cavity Directional Coupler-coupling value 10dB a). Low loss b). Compact structure c). Flat response...
  • Coupler-PP Uni-directional shut off coupler with an automatic shut off valve built in the socket, recommended f...
  • JM2-directional coupler for CNC machine The OEM service :1.With keyway or without keyway 2.The material of aluminum or stainless steel and so on.3.Coupling are available according to your drawing and technical requirement .Features:1.Co...
  • Directional Coupler Rine Engineering Private Limited is one of the leading manufacturers and suppliers of customized sand castings and customized grey iron casting. Our product range is of steel, iron and grey iron c...
  • ISO 7241-A Hydraulic Quick Couplings Hydraulic Quick Coupling Bi-directional shutoff couplings minimize fluid loss when disconnected. Both halves of the coupler, body and nipple, contain shutoff valves. Coupling components are made f...

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Product Summary

A directional coupler is designed with two sensing conductors and a basic coupler and a supplementary coupler corresponding to them. The basic coupler is based on the coupling between a first sensing conductor and the transmission conductor. The supplementary coupler is based on the coupling between a second sensing conductor and the transmission conductor. The sensing conductors are substantially shorter than a quarter wave, because of which the directivity of both the basic and the supplementary coupler is low. The other ends of the sensing conductors are connected to each other and further to the measurement port of the directional coupler.

The coupling signals induced by a reverse signal in the connecting point of the sensing conductors are arranged equal by their absolute value but oppositely phased, in which case their sum signal in the measurement port is insignificantly small. For this purpose, for example, the transmission line formed by the first sensing conductor and the ground is terminated with a matching element at its opposite end. The termination impedances can be adjustable and the directional coupler thus tunable. In this manner, the directivity of the total directional coupler is improved by means of the second sensing conductor. The directional coupler is small-sized, and good directivity is achieved in a very large frequency range.

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