Wideband Compact RID42 Directional Coupler Low Loss Stable For RF Monitoring
Price:
＄16.5-19.8/pieces
MOQ:
1K
Delivery Time:
7-14 work days (Negotiable)
Brand:
CHIPSEN
Product Description
Wideband Compact RID42 Directional Coupler Low Loss Stable for RF Monitoring
The RID42 is a customizable magnetic directional coupler designed to sample RF energy travelling through a transmission path. Depending on its winding and circuit configuration, it can be used to monitor forward power, reflected power, or both without placing the complete transmitted power directly into the measurement circuit.
The pictured product combines a ferrite magnetic structure, copper windings, a PCB, and supporting electronic components. All numerical values provided are typical engineering inquiry references rather than guaranteed ratings. Final RF performance must be confirmed through approved specification, sample validation, and measurement under defined fixture and port conditions.
Industry Applications & Specifications
| Industry and Application | Typical Operating Conditions | Parameters Prioritized by Buyers | Typical Inquiry Reference | Chipsen Customization Support |
|---|---|---|---|---|
| RF Power Amplifiers | Forward and reflected power monitoring | Frequency range, coupling factor, directivity, insertion loss, and power handling | 50 ohm systems commonly requested | Coupling level, windings, core material, PCB and port configuration |
| HF Communication Equipment | Transmitter output and antenna line monitoring | Wideband response, directivity, return loss, and calibration consistency | Approximately 1.8 MHz to 30 MHz commonly encountered | HF optimized core, winding ratio, coupling and calibration |
| Antenna Tuners | Forward power, reflected power and SWR detection | Directional accuracy, low insertion loss, detector output and compact size | Approximately 1.8 MHz to 54 MHz depending on equipment | Dual sampling outputs, PCB dimensions and detector circuit interface |
| VHF Communication Equipment | Radio transmitter and repeater monitoring | Frequency response, coupling flatness, isolation and return loss | Approximately 30 MHz to 300 MHz subject to design validation | Magnetic material, winding geometry, PCB layout and terminals |
| Industrial RF Generators | Process power monitoring and load protection | Power handling, frequency stability, directivity and thermal performance | Application frequencies may include 13.56 MHz, 27.12 MHz and 40.68 MHz | High current path, thermal design, coupling ratio and protection interface |
| Broadcast Equipment | Transmitter output monitoring and reflected power protection | Continuous power handling, low insertion loss, directivity and long term stability | Customer specified broadcast band and line impedance | Frequency optimized construction, mechanical mounting and calibration |
| Wireless Infrastructure | RF module monitoring and protection | Compact footprint, coupling tolerance, isolation and repeatability | Frequency range determined by the customer radio platform | PCB footprint, impedance, coupling level and test limits |
| Test and Measurement Equipment | RF power sampling, signal analysis and calibration fixtures | Coupling accuracy, flatness, directivity, phase response and traceability | 50 ohm or 75 ohm measurement systems | Calibration data, frequency points, connectors and tolerance |
| Industrial Plasma Equipment | Generator output monitoring and impedance matching | High power stability, reflected signal accuracy and thermal performance | Project specific RF generator frequency and output power | Conductor size, magnetic material, mounting and thermal evaluation |
| Medical RF Equipment | RF generator monitoring and load protection | Accuracy, isolation, reliability, material traceability and documentation | Equipment specific operating frequency and power | Controlled materials, validation testing and documentation |
| Amateur Radio Equipment | Transceiver amplifier and SWR meter | Broad HF coverage, forward reverse detection and cost | HF bands from approximately 1.8 MHz to 54 MHz commonly requested | Coupling ratio, PCB size, detector output and lead configuration |
| Automated RF Test Systems | Production line power monitoring and fault detection | Repeatability, coupling tolerance, insertion loss and test correlation | Customer specified frequency points and power levels | Automated test limits, serialized data and calibration support |
Customization Parameters
| Parameter | Typical Inquiry Reference | Customization Status |
|---|---|---|
| Product Type | Magnetic RF directional coupler | Customizable |
| Model Platform | RID42 | To Be Confirmed by Drawing |
| Operating Frequency | Customer specified frequency band | Customizable |
| Reference Impedance | 50 ohms, 75 ohms or customer specified | Customizable |
| Coupling Factor | Common requests may range from approximately 10 dB to 50 dB | Customizable |
| Coupling Flatness | Maximum variation across the specified frequency band | Customer Specified |
| Directivity | Minimum directional separation across the operating band | Customer Specified |
| Insertion Loss | Maximum permitted through path loss | Customer Specified |
| Return Loss | Minimum input and output return loss | Customer Specified |
| VSWR | Maximum permitted voltage standing wave ratio | Customer Specified |
| Isolation | Minimum isolation between defined ports | Customer Specified |
| Forward Sample Output | Voltage, power or coupled RF level at defined input power | Customizable |
| Reverse Sample Output | Voltage, power or coupled RF level at defined reflected power | Optional |
| Phase Response | Phase relationship between through and coupled signals | Customer Specified |
| Maximum Continuous Power | Defined according to frequency, conductor current and thermal conditions | Customer Specified |
| Peak Power | Maximum pulse power, duration and duty cycle | Customer Specified |
| Through Path Current | RMS and peak current through the primary conductor | Customer Specified |
| Core Material | Ferrite selected according to frequency, permeability, loss and temperature | Customizable |
| Winding Ratio | Developed according to the required coupling level | Customizable |
| Detector Circuit | External detector interface or integrated detector components | Optional |
| PCB Dimensions | Length, width, thickness and mounting hole arrangement | Customizable |
| Port Configuration | Input, output, forward coupled, reverse coupled or customer specified | Customizable |
| Connection Type | PCB pads, pins, lead wires, coaxial connectors or customer specified | Customizable |
| Operating Temperature | Standard industrial or extended temperature design | Customizable |
| Environmental Protection | Coating, impregnation or encapsulation | Optional |
| Calibration Data | Coupling data at agreed frequencies and power levels | Optional |
| Marking | Logo, part number, frequency range, batch and traceability code | Customizable |
| Packaging | Tray, carton or customer specified protective packaging | Customizable |
Engineering Information Required for Custom Design
| Required Information | Engineering Purpose |
|---|---|
| Minimum and Maximum Frequency | Determines core material, winding structure and PCB design |
| Nominal System Impedance | Defines the through path and measurement reference |
| Required Coupling Factor | Determines the sampled RF level |
| Coupling Tolerance | Defines production and calibration limits |
| Minimum Directivity | Establishes forward and reverse signal separation |
| Maximum Insertion Loss | Defines acceptable loss in the main transmission path |
| Minimum Return Loss | Supports impedance matching requirements |
| Continuous RF Power | Determines conductor size, thermal design and material selection |
| Peak RF Power | Supports transient voltage and current evaluation |
| Modulation or Waveform | Supports peak to average power analysis |
| Forward Detection Requirement | Defines the forward sample output |
| Reflected Detection Requirement | Determines whether reverse coupling is required |
| Detector Circuit Interface | Defines the output voltage, impedance and external circuitry |
| Connector or PCB Interface | Determines ports, pads, pins and mounting |
| Maximum Dimensions | Defines the available magnetic and PCB envelope |
| Operating Temperature | Supports material and calibration stability evaluation |
| Calibration Frequencies | Defines production measurement points |
| Applicable Standards | Determines materials, safety, testing and documentation |
| Annual Demand | Supports material, fixture and production planning |
Product Description
The RID42 directional coupler is designed for RF power sampling, monitoring, protection and measurement applications. It can provide a reduced representation of the signal travelling through the primary transmission path while minimizing disturbance to the main RF power flow.
A directional coupler can help equipment monitor transmitter output, detect reflected energy, estimate load mismatch and support protection functions such as power reduction, shutdown or alarm activation.
The pictured construction uses a ferrite magnetic core, wound conductor, PCB and discrete supporting components. Depending on the approved design, the assembly can provide a forward coupled output, a reverse coupled output, or an interface to an external detection circuit.
Chipsen can customize the operating frequency, coupling factor, directivity, impedance, power handling, PCB dimensions, windings, terminals, detector interface, coating, marking and calibration requirements.
Product Construction
| Construction Element | Description |
|---|---|
| Magnetic Core | Ferrite material selected according to frequency, permeability, loss and temperature |
| Through Conductor | Primary current path carrying the monitored RF power |
| Coupled Winding | Secondary winding providing a reduced representation of the RF signal |
| Directional Network | Winding and PCB arrangement used to separate forward and reflected energy |
| Printed Circuit Board | Supports the magnetic component, terminals and associated circuitry |
| Passive Components | Capacitors, resistors or other components used for compensation, termination or detection |
| Connection Points | PCB pads, pins, lead wires or connectors for the required ports |
| Insulation | Wire coating, sleeving, spacing and protective materials |
| Protective Coating | Optional conformal coating, resin or encapsulation |
| Identification | Customized part number, port marking, batch and traceability code |
Product Characteristics
- Compact magnetic directional coupler construction
- Forward RF power sampling
- Reflected RF power sampling available
- Custom operating frequency range
- Custom coupling factor
- Controlled coupling flatness
- High directivity design options
- Low insertion loss through path
- 50 ohm and 75 ohm configurations
- Custom power handling
- Low loss ferrite material selection
- Integrated PCB assembly
- Detector component integration available
- Custom port and terminal configuration
- Calibration data available when specified
- Drawing based and sample based replacement development
Applications
- RF power amplifiers
- HF radio transmitters
- VHF communication equipment
- Antenna tuning units
- Standing wave ratio meters
- Forward and reflected power meters
- Broadcast transmitters
- Industrial RF generators
- RF heating systems
- Plasma processing equipment
- Medical RF generators
- Telecom infrastructure
- Radio repeaters
- Automated RF test systems
- Impedance matching networks
- Load protection circuits
- Transmitter monitoring systems
- RF calibration equipment
Quality Control
Chipsen establishes the manufacturing and inspection plan according to the approved RF specification, mechanical drawing, measurement fixture and customer quality requirements. Incoming ferrite materials, copper wire, PCBs, terminals and passive components are inspected before production. Winding, assembly, soldering, component installation, testing, calibration, marking and packaging are controlled through documented procedures.
| Inspection Item | Inspection Purpose |
|---|---|
| Frequency Response Test | Confirms operation across the specified frequency band |
| Coupling Factor Test | Measures the relationship between through power and coupled output |
| Coupling Flatness Test | Evaluates coupling variation across the operating band |
| Directivity Test | Confirms separation between forward and reverse coupled signals |
| Insertion Loss Test | Measures loss introduced into the primary signal path |
| Return Loss Test | Evaluates impedance matching at the input and output |
| VSWR Test | Confirms the specified standing wave ratio |
| Isolation Test | Measures unwanted transmission between defined ports |
| Phase Response Test | Evaluates signal phase where required |
| Power Handling Test | Evaluates operation at the agreed continuous power |
| Peak Power Test | Available for pulsed applications |
| Temperature Rise Test | Confirms thermal performance under defined RF power |
| Winding Resistance Test | Evaluates continuity and conductor consistency |
| Dielectric Test | Verifies insulation where applicable |
| PCB Inspection | Checks solder joints, components, pads and contamination |
| Dimension Inspection | Confirms PCB size, mounting holes and component envelope |
| Port Identification Test | Confirms input, output, forward and reverse connections |
| Calibration Verification | Confirms results at agreed reference frequencies |
| Appearance Inspection | Checks windings, core, PCB, marking and workmanship |
| Packaging Inspection | Confirms protection, quantity, labels and orientation |
RF measurements must use an agreed fixture, cables, connectors, calibration plane and test method. Results from different fixtures may not be directly comparable.
Company Profile
Chipsen specializes in the development and manufacturing of custom magnetic components for industrial equipment, power electronics, automation systems and electrical control applications.
The product range includes high-frequency transformers, low-frequency transformers, planar transformers, power inductors, high-current inductors, toroidal inductors, common-mode chokes, EMI filter magnetics, wireless charging coils, custom coils and non-standard magnetic components.
Chipsen supports drawing-based development, sample-based replacement development and application-requirement design. Engineering discussions can cover low DCR, leakage inductance, EMI, insulation, temperature rise, winding structure, footprint, pinout, terminals, protection devices and production-testing requirements.
The objective is to provide evaluation-ready samples and a clearly defined specification before production approval.
Why Choose Chipsen
- RID42 directional coupler customization
- Custom frequency range and coupling factor
- Forward and reflected power sampling options
- 50 ohm, 75 ohm and customer specified impedance
- Directivity, insertion loss and return loss optimization
- Magnetic material and winding ratio development
- PCB dimensions, port layout and terminal customization
- Integrated passive component options
- Drawing based and sample based replacement development
- RF sample testing based on agreed fixtures and conditions
- Calibration data available according to project requirements
- OEM and ODM customization
- MOQ from 100 pieces for eligible projects
- Quotation target within three working days after complete requirements are received
- Sample production target within seven days for eligible designs after technical confirmation
- Five year warranty with extended warranty evaluation for special industries
- Extended warranty is subject to application validation and written agreement
- Material and production traceability according to project requirements
- Clear drawing and specification approval before mass production
Frequently Asked Questions
What is a directional coupler?
A directional coupler samples a defined portion of RF energy travelling through a transmission path. It can distinguish energy travelling in the forward direction from energy reflected by the load.
A directional coupler samples a defined portion of RF energy travelling through a transmission path. It can distinguish energy travelling in the forward direction from energy reflected by the load.
Is the RID42 a power transformer?
No. Although it uses magnetic coupling, the RID42 is intended for RF signal sampling and directional measurement rather than normal power supply voltage conversion.
No. Although it uses magnetic coupling, the RID42 is intended for RF signal sampling and directional measurement rather than normal power supply voltage conversion.
Can it measure forward and reflected power?
A customized design can provide forward and reverse coupled signals. External detector calibration and processing may be required to convert the sampled signals into power and SWR readings.
A customized design can provide forward and reverse coupled signals. External detector calibration and processing may be required to convert the sampled signals into power and SWR readings.
What information is required for customization?
Please provide the frequency range, system impedance, coupling factor, directivity, insertion loss, return loss, continuous and peak power, port configuration, detector interface, dimensions, temperature range and annual demand.
Please provide the frequency range, system impedance, coupling factor, directivity, insertion loss, return loss, continuous and peak power, port configuration, detector interface, dimensions, temperature range and annual demand.
What does the coupling factor mean?
The coupling factor describes how much lower the coupled output power is than the power travelling through the main path. For example, a 30 dB coupling factor provides a much smaller sample suitable for monitoring circuitry.
The coupling factor describes how much lower the coupled output power is than the power travelling through the main path. For example, a 30 dB coupling factor provides a much smaller sample suitable for monitoring circuitry.
What is directivity?
Directivity describes the coupler ability to distinguish forward energy from reverse energy. Higher directivity generally improves reflected power and SWR measurement accuracy.
Directivity describes the coupler ability to distinguish forward energy from reverse energy. Higher directivity generally improves reflected power and SWR measurement accuracy.
What is insertion loss?
Insertion loss is the power lost from the main transmission path because the coupler has been inserted into the circuit. The acceptable maximum must be specified across the operating frequency range.
Insertion loss is the power lost from the main transmission path because the coupler has been inserted into the circuit. The acceptable maximum must be specified across the operating frequency range.
Can the coupling factor be customized?
Yes. It can be adjusted through the magnetic material, winding ratio, conductor arrangement, PCB network and termination conditions.
Yes. It can be adjusted through the magnetic material, winding ratio, conductor arrangement, PCB network and termination conditions.
Can the RID42 be designed for 50 ohm systems?
Yes. Designs for 50 ohm, 75 ohm or other customer specified impedances can be evaluated.
Yes. Designs for 50 ohm, 75 ohm or other customer specified impedances can be evaluated.
What power level can the RID42 handle?
Power capability depends on frequency, conductor size, PCB copper thickness, impedance, waveform, duty cycle, temperature and cooling. Continuous and peak power must be provided before design.
Power capability depends on frequency, conductor size, PCB copper thickness, impedance, waveform, duty cycle, temperature and cooling. Continuous and peak power must be provided before design.
Can the product include detector components?
Yes. Diodes, capacitors, resistors and other detector or compensation components can be integrated when the required circuit and output interface are provided.
Yes. Diodes, capacitors, resistors and other detector or compensation components can be integrated when the required circuit and output interface are provided.
Can calibration data be supplied?
Yes. Coupling, directivity, insertion loss and return loss data can be provided at agreed frequency points when calibration requirements, fixtures and acceptance limits are defined.
Yes. Coupling, directivity, insertion loss and return loss data can be provided at agreed frequency points when calibration requirements, fixtures and acceptance limits are defined.
Can Chipsen develop a replacement from a physical sample?
Yes. The sample can be evaluated for dimensions, windings, core material, PCB layout and components. The required frequency, power, impedance and RF performance must also be provided.
Yes. The sample can be evaluated for dimensions, windings, core material, PCB layout and components. The required frequency, power, impedance and RF performance must also be provided.
Can samples be produced within seven days?
Seven day sample production is a target for eligible designs after the RF specification, PCB requirements, materials and test method are confirmed. Special fixtures or calibration requirements may require additional time.
Seven day sample production is a target for eligible designs after the RF specification, PCB requirements, materials and test method are confirmed. Special fixtures or calibration requirements may require additional time.
Are the specifications on this page guaranteed?
No. They are typical engineering and purchasing references. Only values confirmed in the approved drawing, RF specification and validation documentation are guaranteed for the final product.
No. They are typical engineering and purchasing references. Only values confirmed in the approved drawing, RF specification and validation documentation are guaranteed for the final product.
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Company
Dongguan Chipsen Electronics Technology Co., Ltd.
Location
No. 234, Changhuang Road, Changping Town, 523586, Dongguan, Guangdong, China
Contact Person
Nick Cheng