LC High-Pass Filter: High-Performance RF Solution for 118-138MHz Band

Against the backdrop of continuous upgrades in wireless communications and RF systems, LC high-pass filters are widely used in various VHF RF applications due to their compact structure, stable performance, and flexible response. The ALCF118M138M45N model launched by Apex Microwave is a typical example, designed for the 118MHz to 138MHz band, taking into account both performance and reliability.

This product is an FM filter independently developed by Apex, which can effectively suppress FM radio broadcast systems in the 87-108MHz range, while efficiently passing through the target signal of 118-138MHz in the VHF band, which can minimize stray signals and avoid system interference.

The LC high-pass filter has a low insertion loss of ≤1.0dB and a high return loss of ≥15dB, ensuring stable signal transmission and reducing reflection interference. It provides a suppression capability of up to ≥40dB in the 87.5-108MHz band, effectively improving the system’s anti-interference performance.

As an experienced LC filter manufacturer, Apex has long focused on LC RF filter design and supports customers’ multi-band customization needs. The product has a power carrying capacity of 50W, an operating temperature range of -40°C to +85°C, is equipped with an N-type interface, and complies with RoHS environmental standards.

In addition to standard models, we also support a variety of customized solutions and provide customized high-pass filter designs to meet special requirements in structure, interface and electrical performance. It is an ideal LC filter product solution.