News - Cavity combiner 80-2700MHz: high isolation, low loss multi-band RF combining solution

The cavity combiner launched by Apex Microwave covers two mainstream communication frequency bands of 80-520MHz and 694-2700MHz, and is designed for multi-band signal synthesis applications such as wireless communication, base station systems, and DAS distributed antenna systems. With high isolation, low insertion loss and excellent intermodulation performance, this cavity combiner has become an ideal choice for high-performance RF system integration.

The cavity combiner performs well in both P1 (80-520MHz) and P2 (694-2700MHz) bands, with P1 insertion loss as low as ≤0.4dB and P2 insertion loss ≤0.6dB, effectively reducing system energy loss. PIM performance reaches -155dBc@900MHz and -161dBc@1900MHz, ensuring signal quality in multi-carrier environments. The return loss is ≥16.5dB, and the isolation is ≥50dB in the main frequency band, which greatly improves the anti-interference ability of the system.

The cavity combiner supports a maximum average power of 120W and a peak power of up to 3000W, which is suitable for high-power communication scenarios. The product interface adopts a standard 4.3-10 Female connector, the overall size is 187.2×130.4×31.8mm, the weight is ≤1.4kg, the shell is made of conductive oxidized aluminum alloy, the surface can be selected from Gray, Akzo Nobel RA7035, Powder spraying, with IP67 protection level, suitable for harsh outdoor and industrial environments.

In addition, the cavity combiner has passed the RoHS 6/6 environmental protection standard certification, the operating temperature range is -35°C to +65°C, and supports customer customized appearance processing and interface configuration, flexibly meeting the needs of different projects.

As a high-isolation, high-stability RF synthesis device, Apex Microwave’s cavity combiner is widely used in 5G base stations, railway communications, emergency communications, radar systems, private network communications and other fields. It is the preferred solution for customers pursuing excellent system performance.