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How to Reduce Third-Order Intermodulation in Passive RF Components
Mar , 05 2026
For engineers working in the passive RF component industry, third-order intermodulation (PIM3) is one of the most challenging performance indicators. As communication networks continue to evolve, mobile operators are tightening their requirements for PIM performance. The standard has gradually moved from -140 dBc to stricter levels such as -155 dBc, -160 dBc, -163 dBc, and even -165 dBc. With more...
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Duplexer vs Combiner: Key Differences in RF Communication Systems
Mar , 07 2026
Duplexers and RF Combiners are both used in RF communication systems to manage and transmit signals. Many engineers or system designers sometimes confuse these two devices because they may appear in similar positions within a network architecture. However, in real-world deployments such as 5G networks, DAS systems, and wireless communication infrastructure, they perform very different functions. F...
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What Is the Coupling of a Directional Coupler and How to Choose the Right Value?
Mar , 14 2026
In modern wireless communication and RF systems, directional couplers are one of the most commonly used passive components. Whether in base stations, DAS systems, or testing and monitoring setups, couplers act as "signal splitters" that help engineers control and measure signals efficiently. Understanding the coupling factor and how to select the appropriate coupling value is fundamental for desig...
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Why RF Combiners Are Essential in 5G Base Station Systems
Mar , 21 2026
When deploying 5G base stations, most attention is typically given to active equipment such as RRUs and BBUs, as well as antenna performance. However, RF passive components are often underestimated. Among them, the RF combiner plays a much more critical role than it appears. It is not just a signal merging device — it directly impacts network performance in several key areas: Network coverage qual...
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4.3-10 vs. N-Type Connectors: Which Interface Offers Better PIM Stability for Passive Components?
Apr , 03 2026
In the field of Radio Frequency (RF) engineering, connectors are often thought of as basic mechanical connections. But in 5G and future 6G networks, the type of connector you choose directly affects spectral efficiency and Signal-to-Noise Ratio (SNR). As multi-carrier, high-power, and high-frequency applications have grown, Passive Intermodulation (PIM) has become the "number one killer" of networ...
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