Recently, China’s MIIT officially approved the 6G trial frequency license of 6425–7125MHz for the IMT-2030 (6G) Promotion Group. The allocated 700MHz continuous wideband spectrum makes up for the spectrum shortage in the second phase of domestic 6G technical tests. This prime mid-band spectrum integrates wide coverage and high capacity, perfectly supporting R&D, field tests and solution validation for space-air-ground integration, communication-sensing-computing convergence and ultra-low latency communication, accelerating large-scale 6G field verification and industrial rollout.
As this frequency band steps into commercial pre-deployment and mass trial stage, RF front-end passive devices are in strong market demand. Circulators are vital components in base station and terminal RF chains, which dominate TX-RX isolation, insertion loss and system stability. They effectively suppress signal interference, guarantee low-latency and high-reliability 6G communication, and act as essential hardware for large-scale spectrum networking construction.
Specialized in RF passive components, UIY launches customized embedded and SMT circulators to match 6G trial network construction, macro base station deployment and lightweight terminal design. With outstanding performance of high isolation, low loss, high power rating and compact structure, our products deliver stable and efficient signal transmission solutions for full-scenario 6G networking.
1. Drop in Circulator UIYDC1220A6425T7125 — High-Power Isolation Solution for Macro Base Stations
Core Function:
Achieves efficient isolation between transmitter and receiver in macro base stations (AAU/RRU) and core modules of test networks. It prevents high-power transmission signals from interfering with receiving links, ensures base station coverage and communication quality, and meets the demand for long-term stable operation in space-air-ground integrated scenarios.
Key Advantages:
- Superior RF performance with high isolation and low insertion loss to improve overall communication efficiency.
- 50W high power rating plus cavity heat dissipation design, suitable for long-term stable operation in high-power scenarios of macro stations and trial networks.
- Embedded TAB packaging enables direct PCB soldering without connectors, simplifying assembly, cutting costs and accelerating iteration of testing equipment.
Application Scenarios:
Macro base station RF front ends, core units of national-level 6G technical trial networks, high-power private network communication equipment, backbone links of space-air-ground integrated communication.
| Model Number | UIYDC1220A6425T7125 |
| Freq. Range (MHz) | 6425–7125 |
| Insertion Loss Max(dB) | 0.4 |
| Isolation Min(dB) | 23 |
| VSWR Max | 1.2 |
| Forward Power(W) | 60 |
| Connector Type | Drop-In |
| Temp.(°C) | -40～+85 |
2. SMT Circulator UIYSC12A6425T7125 — Preferred Miniature Solution for High-Density Integrated Terminals
Core Function:
Realize highly reliable signal isolation with compact dimensions in micro base stations, terminal devices and multi-channel trial prototypes, support high-density integration of Massive MIMO arrays, balance equipment lightweight design and communication stability, and meet multi-module collaboration requirements of integrated communication-sensing-computing scenarios.
Key Advantages:
- Stable and balanced RF parameters compliant with various index verification requirements of trial scenarios.
- SMT patch packaging with miniature size fits high-density circuit board layout perfectly.
- Excellent mass production consistency and cost efficiency, satisfying both 6G prototype testing and terminal pilot mass production demands.
Application Scenarios:
Micro base stations, home broadband CPE devices, immersive AR/VR intelligent terminals, large-scale antenna arrays, industrial IoT communication terminals, integrated communication-sensing-computing trial prototypes.
| Model Number | UIYSC12A6425T7125 |
| Freq. Range (MHz) | 6425–7125 |
| Insertion Loss Max(dB) | 0.5 |
| Isolation Min(dB) | 20 |
| VSWR Max | 1.25 |
| Forward Power(W) | 30 |
| Connector Type | SMT |
| Temp.(°C) | -40～+85 |
The approval of this test spectrum marks the official transition of China’s 6G industry from the laboratory R&D phase to large-scale field networking and real-world testing, with the independent supply of localized RF components and high-performance devices becoming a key driver of the industry’s accelerated development. Moving forward, UIY will closely follow the progress of 6G technology trials and the evolution of standards, continuously optimizing product performance to deliver enhanced spectrum adaptability, superior isolation, and lower insertion loss, thereby contributing to the high-quality development of global 6GHz communication networks.