Core Positioning: "Signal Guardian" and "Interference Barrier" for Satellite-to-Ground Communication In satellite communication scenarios such as maritime long-distance communication, air-to-ground interconnection, and ground emergency rescue, terminals need to overcome three major challenges: long space-to-ground links (signal attenuation), numerous spatial interferences (complex electromagnetic environment), and diverse application scenarios (multiple scenarios across sea, land, and air). As a core passive component of satellite terminals, the RF circulator/isolator achieves "precise signal delivery to the satellite and interference-free signal return" through low-loss unidirectional signal transmission, building a "signal fidelity defense line" for the satellite-to-ground communication link and ensuring the stability and real-time performance of voice, data, and image transmission.

　　Three core advantages to meet the stringent requirements of satellite communication:

　　1. All-scenario environmental reliability: Withstands extreme ground and air conditions

　　* Stable operation over a wide temperature range: Covers extreme temperature ranges from -55℃ to 150℃, suitable for scenarios such as Arctic research terminals (low temperature), desert ground stations (high temperature), and aviation electronics cabins (sudden temperature changes);

　　* Enhanced environmental protection: Resistant to salt spray (1000 hours of neutral salt spray test, compliant with GB/T 2423.17), low pressure (10kPa, corresponding to an altitude of 15000 meters), and mold (compliant with GJB 150.10), meeting the long-term outdoor/high-altitude use requirements of marine vessels and airliners;

　　* High mechanical stability: Resistant to random vibration (10~2000Hz, 294m/s²), and shock (1000m/s², 1ms), suitable for the bumpy and drop scenarios of ground mobile terminals (vehicle-mounted/portable), with a lifespan exceeding 20,000 hours.

　　2. High-fidelity RF performance: Ensuring high-quality transmission of weak signals.

　　Ultra-low insertion loss: ≤0.5dB (typical value for Ku/Ka bands), minimizing signal attenuation in satellite-to-ground links and extending terminal communication distance (supporting stable communication with LEO satellites for 1500km+);

　　High isolation and anti-interference: Isolation ≥30dB, effectively suppressing space electromagnetic interference (such as crosstalk from ground base stations and other satellite signals) and internal TX/RX port crosstalk, reducing the bit error rate (BER≤1×10⁻⁸);

　　Wide-band and high adaptability: Covering all mainstream satellite frequency bands including C (4~8GHz), Ku (12~18GHz), and Ka (26~40GHz), compatible with High Throughput Satellite (HTS) and LEO communication protocols, with a VSWR ≤1.25, ensuring signal matching.

　　3. Multi-terminal Compatibility: Adaptable to all types of satellite terminals

　　Scenario-based Packaging Design: Supports portable terminals in "thin and light SMT packages" (minimum 2.5×2.5mm), maritime terminals in "high-protection metal packages" (IP68), and ground fixed stations in "high-power ceramic packages" (maximum power 50W), meeting the needs of different terminal form factors;

　　Flexible Interface Configuration: Compatible with common satellite terminal interfaces such as N-type, SMA-J, and TNC, with customizable 50Ω/75Ω impedance, adaptable to various products such as maritime satellite phones, aviation WiFi terminals, and portable emergency communication stations;

　　Protocol-level Adaptation: Supports mainstream satellite communication protocols such as DVB-S2X and TDMA, enabling end-to-end integration and demodulation of "signal transmission - on-board relay - reception and demodulation" with the terminal, reducing integration difficulty.

　　Empowering All-Scenario Satellite Communication: A Key Support from "Connectivity" to "Reliability"

　　Maritime Sector: Ensuring real-time communication between ocean-going vessels and shore-based facilities, ensuring stable transmission of navigation data, crew voice messages, and cargo monitoring information even in typhoon or high-salt-fog environments, complying with the International Maritime Organization (IMO) SOLAS Convention requirements;

　　Aviation Sector: Providing air-to-ground connectivity support for civil aircraft, with low-loss characteristics ensuring stable WiFi speeds for passengers (≥100Mbps), while simultaneously guaranteeing encrypted communication security between the crew and ground control;

　　Emergency Response Sector: At disaster sites such as earthquakes and floods, ground mobile terminals, leveraging the product's shock resistance and wide-temperature range characteristics, enable rapid networking with emergency satellites, ensuring the real-time transmission of rescue instructions.

　　Cooperation Guarantee: Satellite Communication-Grade Supply Chain Services

　　Complete Compliance and Certifications: Products comply with EN 302 307 (European satellite terminal standard) and GJB 548B (military-grade reliability standard). Production lines are ISO 9001/14001/45001 certified, supporting mass production (monthly capacity exceeding 500,000 units) with a delivery cycle of ≤3 weeks.

　　Full-Link Testing Support: Providing free samples and a complete set of test reports covering "RF performance + environmental reliability + satellite link integration," assisting customers in completing terminal network access certifications (such as China Satcom and Inmarsat certifications).

　　Customized Technical Services: Providing cryogenic hardening and radiation-resistant customized solutions for special scenarios such as polar scientific expeditions and deep space exploration, keeping pace with satellite communication technology iterations (such as 6G satellite interconnection), and providing component upgrade support.

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