90 Degree Hybrid Coupler, Frequency 18~50GHz, Average Power 20W, 2.4mm Female

A 90 degree hybrid coupler is a four port microwave passive device. When a signal is input from one of the ports, it evenly distributes the energy of the signal to two output ports (each half, i.e. -3dB), and there is a 90 degree phase difference between these two output signals. The other port is an isolated end, ideally without energy output. The following briefly introduces its characteristics and applications:

Characteristics:

1. Ultra wide instantaneous bandwidth: A single device covers 18-50GHz, eliminating the hassle of switching multiple narrowband devices in traditional solutions and greatly simplifying system design complexity.
2. Excellent phase amplitude consistency: Within the entire frequency band, the amplitude balance of the two output ports is better than ±0.9dB, and the phase difference is maintained within ±12°, ensuring high fidelity signal processing, which is crucial for high-order modulation and demodulation applications.
3. High power processing capability: With an average power capacity of 20W, it can easily handle power synthesis tasks in radar transmission links or testing and monitoring needs in high-power transmitters, and its reliability far exceeds that of ordinary commercial devices.
4. Industrial grade connector: Using a standard 2.4mm female interface, it has strong compatibility and supports multiple repeated connections, ensuring durability in harsh laboratory environments and equipment applications.

Applications:

1. Satellite Internet and 6G R&D: As the core unit of signal synthesis/decomposition, it can be widely used in the feed network (BFN) of millimeter wave phased array antenna to achieve beam forming and scanning.
2. Electronic warfare and radar systems: Used in high-power, wideband military radar and electronic warfare systems to construct balanced amplifiers and image rejection mixers, enhancing system sensitivity and anti-interference capabilities.
3. High end testing and measurement: Providing high-performance built-in components for testing equipment such as vector network analyzers and spectrum analyzers below 50GHz, it is an indispensable "behind the scenes hero" for calibrating and testing high-power devices.

Qualwave Inc. provide broadband and high power 90 degree hybrid couplers in a wide range from 1.6MHz to 50GHz, widely used in multiple fields. This article introduces a 90 degree hybrid coupler with an average power of 20W for frequencies ranging from 18 to 50GHz.