射頻下變頻器 3400–3600MHz

Customer Specification Request:

頻率範圍 (射頻) 3400..3600 兆赫
Maximum input power 1 兆瓦 (0dBm的)
頻率範圍 (如果) 400..600 兆赫
Noise figure @ 18 °C typ. 1.0 D b
Gain @ 25 ℃ 40 D b
Gain flatness 1.50 D b
Image rejection typ. 47 D b
LO frequency 3000 兆赫
LO accuracy @ 18 ℃ +/- 20 千赫
LO frequency stability +/- 20 千赫
Phase noise @ 100 千赫 -112 分貝/赫茲
LO leakage to IF port typ. -58 dBm的
LO leakage to RF port typ. -52 dBm的
電源電壓 +9 … +18 直流電壓
Current consumption typ. 180 嘛
Operating case temperature range -20 … +55 ℃
Input connector / impedance N-female, 50 歐姆
Output connector / impedance N-female, 50 歐姆
Case milled Aluminium, water resistant
外形尺寸 (毫米) 82 X 64 X 22
重量 230 G

RF下變頻BDC降壓混頻器上變頻與下變頻
RF下變頻BDC降壓混頻器上變頻與下變頻

Analysis of Customer Requirements

This set of parameters clearly describes a C-band to UHF-band frequency down converter, typically used in RF communication, 遙測, or COFDM video transmission systems. 讓我們分解一下客戶正在尋找什麼以及該規範對實際應用意味著什麼.

  1. 變頻目的:
    輸入範圍為 3400–3600兆赫 (射頻) 和輸出範圍 400–600 MHz (如果) 表示固定本地振盪器 (洛) 在 3000 兆赫. 這表示轉換器將 C 頻段訊號下移至較低的 IF 頻段, 使它們與標準 COFDM 解調器或 SDR 接收器相容.
  2. 低噪音設計:
    一個 1.0 dB 噪音係數 是例外, 確保最小的訊號衰減－對於監控中的長距離連結或弱訊號接收至關重要, 無人機, 或廣播系統.
  3. 穩定的增益和平坦度:
    和 40 分貝增益 並且只有 1.5 分貝平坦度, 該裝置確保整個工作頻段的性能一致. 這有助於保持可靠的信噪比並簡化後續放大或解調階段.
  4. 高鏡像抑制:
    該 47 dB 鏡像抑制 level 展示了精心設計的過濾, 可防止不必要的鏡像頻率使 IF 輸出失真——這是窄頻數位系統的關鍵優勢.
  5. 優異的本振穩定性和相位噪聲:
    該 ±20 kHz 頻率穩定性 和 -112 dBc/Hz 相位雜訊 100 kHz 偏移 表示該轉換器適用於現代數位調變方案, 包括 COFDM, QPSK, 或QAM, 其中相位雜訊直接影響誤碼率.
  6. 堅固實用的設計:
    該 銑削鋁, 防水殼 和寬 -20 至 +55°C 工作範圍使該轉換器適用於 現場部署, 包括移動指揮站, 無人機地面控制, 和室外中繼系統.
  7. 電源與介面:
    支持 9–18 伏特直流電 功率輸入和典型值 180 嘛 電流消耗, 它與常見的現場電源系統相容. 該 N型50Ω連接器 ensure solid RF performance with minimal signal loss.

應用領域

  • Long-range COFDM video receiver front-end
  • UAV and drone ground control stations
  • Wireless surveillance and telemetry
  • C-band communication link monitoring
  • Military and emergency communication systems

結論

This specification suggests the customer needs a precision-engineered, low-noise RF down converter 為了 C-band signal reception. It’s ideal for integration into COFDM receiver systems, broadband communication links, or UAV downlink setups where high sensitivity and stability are critical.

Such converters are often paired with high-performance COFDM demodulator modules to provide a complete long-range video or telemetry solution.

RF下變頻BDC降壓混頻器上變頻與下變頻

降頻轉換器

RF 下變頻 BDC 降頻 上變頻 下變頻

$999.00

常問問題

Q1: What is the purpose of converting 3400–3600 MHz signals to 400–600 MHz?

A1: This down conversion shifts high-frequency C-band signals into a lower IF band, making them easier to process with standard COFDM or SDR demodulators while reducing cost and complexity in the receiver chain.

第2季: Can this converter be used with COFDM receivers?

A2: 是. The 400–600 MHz IF output is ideal for most COFDM demodulator modules, providing compatibility for digital video, 遙測, or data transmission systems.

Q3: How does the 1 dB noise figure affect performance?

A3: A low noise figure ensures minimal degradation of weak RF signals, greatly improving reception quality and effective range — especially important in long-distance UAV and mobile communication links.

第四季: Is the converter suitable for outdoor or vehicle-mounted use?

A4: 絕對地. Its water-resistant aluminum enclosure and -20 °C 至 +55 °C operating range make it reliable for field deployment, including mobile and harsh environments.

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