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Basics Selection 17.7GHz To 23.55GHz RF Directional Coupler

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Basics Selection 17.7GHz To 23.55GHz RF Directional Coupler

Brand Name : Sinoscite

Model Number : CP17.7-21GS-3150

Certification : ISO 9001:2015

Place of Origin : Sichuan, China

MOQ : 1 Piece

Price : Negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 2000 Piece per month

Delivery Time : 4 weeks

Packaging Details : Standard exporting carton , each product individually wrapped, high density foam protection professional packing.

Operation frequency : 17.7-23.55GHz

Insertion loss : ≤1.1dB

In-Band Fluctuation : ≤0.5dB

Coupling : 20±1.5dB

Coupling Consistency : ≤±0.8dB

Directionality : ≥15dB

Input And Output VSWR : ≤1.4

Coupled Port VSWR : ≤1.5

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Passive Devices RF Coupler Basics & Selection RF & Microwave Couplers

Quick Details

1 Product Type Coupler
2 Model CP17.7-21GS-3150
3 Working Frequency 17.7-23.55GHz
4 Insertion Loss ≤1.1dB
5 In-Band Fluctuation ≤0.5dB
6 Coupling 20±1.5dB
7 Coupling Consistency ≤±0.8dB
8 Directionality ≥15dB
9 Input And Output VSWR ≤1.4
10 Coupled Port VSWR ≤1.5
11 Input And Output Interface Coaxial (2.92-K)
12 Coupling Port Output Coaxial (2.92-K)
13 Material Brass silver plated
14 Surface Treatment Black paint
Working principle
The power transmitted in the main line is coupled to the secondary line through a variety of ways, and interferes with each other and only transmits in one direction in the secondary line.
Figure 1 shows three typical coupling structures of rectangular waveguide directional couplers. a is the two-hole coupling separated by 1/4 guide wavelength; b is the double series branch line coupling with the spacing and length equal to 1/4 guide wavelength; c is the continuous coupling of TE and TE propagation modes in the crack area. Take the two structures of a and b as examples. After the signal input from port ① is coupled to the secondary line in two ways, it is superimposed in phase due to the same stroke in the direction of port ④, and there is output; in the direction of ③, the stroke differs by 1/2 guide wavelength The reverse phase cancellation is isolated without output.
Figure 2 shows two typical coupling structures of the microstrip directional coupler. A is the dual parallel branch line coupling with the pitch and length equal to 1/4 of the lead wavelength, and b is the continuous coupling of the electric and magnetic fields in the parallel region. Taking the structure of b as an example, the signal input from port ① is coupled to the two ports of the secondary line by electric field to generate in-phase induced voltage, and magnetic field coupling generates reverse-phase induced voltage. The result is added at port ④ and there is output, and at ③, it is cancelled and there is no output in isolation.
In addition, it can also form a directional coupler for other transmission lines (Figure 3).
Figure 1
Figure 2
Figure 3
Basics Selection 17.7GHz To 23.55GHz RF Directional Coupler

Product Tags:

23.55GHz RF Directional Coupler

      

17.7GHz RF Directional Coupler

      

23.55GHz cross directional coupler

      
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