7GHz WR-112 WAVEGUIDE DUPLEXER

• Low VSWR at all ports (when properly terminated)
• Single‑antenna sharing between Tx and Rx (reduces hardware)
• High isolation between transmitter and receiver ports (typically >30 dB)

Working Principle of a WAVEGUIDE DUPLEXER

A WAVEGUIDE DUPLEXER is a three‑port microwave component that allows a single antenna to be shared between a transmitter and a receiver, while providing isolation between them.
A WAVEGUIDE DUPLEXER typically consists of two band‑pass filters (or one band‑pass and one band‑reject filter) connected to a common junction, often using a WAVEGUIDE MAGIC T or a circulator‑based architecture.
A WAVEGUIDE DUPLEXER separates transmit and receive signals based on frequency: the transmit channel passes the transmitter frequency (Tx) to the antenna, while the receive channel passes the receiver frequency (Rx) from the antenna.
A WAVEGUIDE DUPLEXER provides high isolation between the transmitter and receiver ports, preventing the high‑power transmit signal from damaging the sensitive receiver front‑end.
In a circulator‑based WAVEGUIDE DUPLEXER, the device uses a WAVEGUIDE CIRCULATOR with two band‑pass filters attached to two ports—the circulator directs Tx energy to the antenna and Rx energy from the antenna to the receiver.
In a filter‑based WAVEGUIDE DUPLEXER (using a magic T or T‑junction), the Tx and Rx signals are separated by frequency‑selective filters; the Tx filter passes only the Tx band to the antenna, and the Rx filter passes only the Rx band from the antenna.
A WAVEGUIDE DUPLEXER relies on the fact that the transmit and receive frequencies are sufficiently separated (frequency division duplexing) so that the filters can effectively discriminate between them.
A WAVEGUIDE DUPLEXER also includes a WAVEGUIDE LOAD or matched termination at the isolated port (when using a circulator) to absorb any leaked or reflected energy.
A WAVEGUIDE DUPLEXER ensures that the antenna is simultaneously connected to both Tx and Rx paths without mutual interference—an essential function for full‑duplex radar and communication systems.

What we do

Vinncom（Founded in 2006）is a leading manufacturer specializing in the microwave and RF field, integrating design, R&D, production, sales,  and service.

Established in 2006 and located in Hefei, China, the company has an R&D and manufacturing center spanning over 16,000 square meters (with an actual construction area of 35,000 square meters).

Our products include power dividers, couplers, bridges, dummy loads, low PIM termination loads, attenuators, combiners, antennas, connector adapters, cables and jumpers, circulator isolators. Based on our seasoned R&D and production system, we provide customized solutions, high-quality products, and professional technical services to meet the application needs of DAS, navigation, telecommunication systems, sensor systems, optical fibers, and more.

Adhering to the principle of "Quality First; Continuous Innovation" and the tenet of "Customer First, Win-Win Cooperation", we have established enduring and harmonious partnerships with our clients. Our products are popular worldwide and have garnered widespread recognition and trust from our customers.

We eagerly anticipate and welcome both new and existing clients to reach out to us, let's join hands to create a bright future together!

Why choose vinncom

Technological Innovation and R&D Capabilities

• Possess core technologies with independent intellectual property rights, keeping pace with or even leading the international advanced level.
• Attach great importance to R&D investment by establishing a dedicated R&D department, continuously driving product iteration and upgrades to meet the ever-changing market demands.
• Have an efficient R&D management system that integrates standardized processes, cross-departmental collaboration, rigorous quality control, efficient project management, continuous technological innovation, and talent development.

Extensive Product Line and Customization Capabilities

• Offer a diverse range of RF and microwave component products, spanning multiple specialized areas such as power dividers, couplers, bridges, dummy loads, low PIM terminations, attenuators, combiners, antennas, connector adapters, cables and jumpers, circulators and isolators, catering to the needs of diverse application scenarios.
• Possess robust customization design capabilities, enabling swift responses to clients' specific requirements and providing tailored solutions.

Production Capability and Quality Control

• Employ internationally advanced production equipment and technologies to guarantee the precision and consistency of products.
• Implement comprehensive quality control procedures to ensure the stability and reliability of product quality.
• Possess efficient production organization and scheduling capabilities, enabling swift response to market orders and achieving large-scale production.

Customer Service and After-sales Support

• Provide real-time customer service with quick responses to customer needs and inquiries.
• Offer comprehensive technical support and services to customers, covering product design, selection, installation, and maintenance.
• Have a well-established after-sales service system to ensure that any issues encountered by customers during use can be resolved promptly and effectively.