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Why Size Is Important in Designing 5G Small Cells
Apr , 11 2026
As 5G networks become more common, it's becoming clear that traditional macro base stations alone aren't enough anymore, especially in cities with high user density. This is where small cells come in. But in real-world deployment, there is one factor that is often overlooked: size. At first glance, size might seem like a minor detail. In reality, it directly impacts how easy equipment is to instal...
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How to Choose the Right Coupling Value for Your DAS System
May , 09 2026
When people talk about DAS systems, most of the attention usually goes to antennas, splitters, or base station equipment. But in many real projects, one small component has a surprisingly big impact on coverage quality — the directional coupler. A poorly selected coupling value can create all kinds of problems: Strong signal in one area, weak signal in another Dead zones at the far end of the buil...
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DAS vs IBS: What's the Difference? | In-Building Coverage Explained
Jun , 09 2026
1. The real problem: indoor signal is broken Over 80% of mobile traffic happens indoors — yet most buildings kill signal in seconds. Concrete walls, steel frames, low-E glass, underground parking: all block RF. From 2G to 4G, outdoor macro towers could still punch through building walls. That changed with 5G. Higher spectrum (3.5GHz to mmWave) barely penetrates. Even with boosted power, 5G signals...
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Low PIM Components: The Real Engineering Math From link budget to selection traps
Jun , 16 2026
Anyone who has worked on distributed antenna systems will eventually have a head‑on fight with PIM. This post skips the fluff and only shows the engineering math. 1. Where PIM comes from — the formula Two frequencies f1, f2 pass through a non‑linear node (loose connector, oxidized plating, magnetic material) and generate intermodulation products: 3rd order: 2f1－f2 , 2f2－f1 5th order: 3f1－2f2 , 3f2...
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