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全向天線

頻率	獲得	尺寸	中號一個ter我一個我
1420-1530中號Hz	2d乙我	F1 X 15公分	F我乙erG我一個ss
1420-1530中號Hz	2d乙我	F1.3 X 12公分	F我乙erG我一個ss
1370-1450中號Hz	2d乙我	F1.3 X 16公分	F我乙erG我一個ss
1420-1530中號Hz	2d乙我	F4.1 X 2.6c米	ABS
902-928中號Hz	2d乙我	F1 X 15公分	F我乙erG我一個ss
902-928中號Hz	2d乙我	F1.3 X 17公分	F我乙erG我一個ss
840-845中號Hz	2d乙我	F1.3 X 16公分	F我乙erG我一個ss
806-826中號Hz	2d乙我	F3.8 ×25公分	F我乙erG我一個ss

全向減震彈簧天線

頻率	獲得	尺寸	中號一個ter我一個我
1420-1530中號Hz	3d乙我	F1.6 X 25公分	F我乙erG我一個ss
1420-1530中號Hz	4d乙我	F1.6 X 35公分	F我乙erG我一個ss
1370-1450中號Hz	5d乙我	F1.6 X 50公分	F我乙erG我一個ss
1370-1450中號Hz	6d乙我	F1.6 X 60公分	F我乙erG我一個ss
802-926中號Hz	4d乙我	F1.6 X 55公分	F我乙erG我一個ss
566-678中號Hz	4d乙我	F1.6 X 70公分	F我乙erG我一個ss
634-674中號Hz	6d乙我	F2 X 120公分	F我乙erG我一個ss
512-562中號Hz	6d乙我	F1.4 X 140公分	F我乙erG我一個ss
806-826中號Hz	2d乙我	F3.8 X 25公分	F我乙erG我一個ss

全向性柔性鵝頸天線

頻率	獲得	尺寸	中號一個ter我一個我
566-678中號Hz	1d乙我	F1.3 ×28公分	F我乙erG我一個ss
566-803中號Hz	2+1分貝 3+1d乙我	F1.6 ×60公分	F我乙erG我一個ss
806-826中號Hz	2d乙我	F1.3 ×36公分	F我乙erG我一個ss
703-803中號Hz	4.5d乙我	F1.3 ×47公分	F我乙erG我一個ss
1420-1530中號Hz	2d乙我	F1.3 X 25公分	F我乙erG我一個ss
1420-1530中號Hz	3d乙我	F1.3 ×31公分	F我乙erG我一個ss
1350-1450中號Hz	4d乙我	F1.3 ×60公分	F我乙erG我一個ss
1370-1450中號Hz	5d乙我	F1.6 ×50公分	F我乙erG我一個ss
1370-1450中號Hz	6d乙我	F1.6 ×60公分	F我乙erG我一個ss
802-926中號Hz	4d乙我	F1.6 X 55公分	F我乙erG我一個ss
566-678中號Hz	4d乙我	F1.6 ×70公分	F我乙erG我一個ss
634-674中號Hz	6d乙我	F2 ×120厘米	F我乙erG我一個ss
512-562中號Hz	6d乙我	F1.4 X 140厘米	F我乙erG我一個ss
806-826中號Hz	2d乙我	F3.8 ×25公分	F我乙erG我一個ss

機載刀片天線模型

頻率	獲得	尺寸	材料
1420-1530兆赫	2分貝	2.7 X 2.4 ×12公分	3-證明ABS
1420-1530兆赫	2分貝	11.6 X 8 ×15.5厘米	玻璃纖維
1350-1470兆赫	4分貝	9.2 X 4.2 X 32.5厘米	3-證明ABS
1350-1470兆赫	6分貝	9.2 X 4.2 ×48公分	3-證明ABS
566-678兆赫	1分貝	9.2 X 4.2 ×16公分	3-證明ABS
566-678兆赫	1分貝	11.6 X 8 ×15.5厘米	玻璃纖維
840-845兆赫	1分貝	9.2 X 4.2 ×16公分	3-證明ABS
840-845兆赫	1分貝	11.6 X 8 ×15.5厘米	玻璃纖維
240-320兆赫	2分貝	9.2 X 4.2 ×16公分	玻璃纖維

3-證明ABS: 高品質ABS, 防水的, 防塵、耐腐蝕

1. 無人機 天線頻率增益和長度

Antenna Classification in UAV Wireless Video Transmission

In UAV wireless video transmission and telemetry systems, antennas play a critical role in determining transmission distance, 訊號穩定性, anti-interference performance, 和整體可靠性. Antennas can be classified based on different standards:

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1. By Radiation Pattern

• Omnidirectional Antennas

  • Radiate signals evenly in 360° on the horizontal plane.

  • Advantage: Maintain stable links while the UAV is moving and changing orientation.

  • Common Use: UAV airborne side, handheld ground controllers.

  • Examples: Whip antennas, fiberglass omnidirectional antennas.

• 定向天線

  • Concentrate energy in a specific direction for higher gain and longer transmission range.

  • Advantage: Excellent for long-distance transmission and point-to-point communication.

  • Drawback: Require alignment toward the UAV.

  • Common Use: Ground stations and fixed receivers.

  • Examples: 八木天線, panel antennas, parabolic antennas.

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2. By Application Scenario (Deployment Location)

• Airborne UAV Antennas

  • 輕的, 袖珍的, 抗振動, often omnidirectional to ensure stable connectivity in flight.

  • Examples: Small whip antennas, patch antennas, embedded PCB antennas.

• Ground Station Antennas

  • Less weight restriction, can use large high-gain directional antennas to extend transmission distance.

  • Examples: 八木天線, fiberglass antennas, high-gain panel antennas.

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3. By Structure and Design

• Fiberglass Antennas

  • Encased in fiberglass for waterproofing, wind resistance, and corrosion protection.

  • Often omnidirectional, suitable for outdoor fixed stations or vehicle-mounted bases.

• 八木天線

  • Classic directional antennas with gain up to 8–15 dBi.

  • Ideal for long-range UAV video reception at ground stations.

• Whip Antennas

  • Slim, rod-shaped, typically omnidirectional.

  • Rugged and durable, used for vehicle-mounted ground stations.

• Patch Antennas

  • 袖珍的, 輕的, easy to integrate into UAV fuselage or electronics.

  • Suitable for onboard applications with short to medium-range communication.

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4. By Operating Frequency

• 2.4 GHz Antennas: Common for UAV remote control signals and short-range WiFi-based video links.

• 5.8 GHz Antennas: Popular for HD video transmission with higher bandwidth, though weaker in penetration.

• 900 兆赫 / 1.2 GHz Antennas: Effective for long-range control and video, with stronger anti-obstacle performance.

• 700–800 MHz Antennas: Widely used in COFDM/OFDM video links for long-range and strong penetration capability.

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5. By Polarization

• Linear Polarization: Typical for whip antennas and Yagi antennas.

• Circular Polarization: Reduces signal fading caused by UAV attitude changes, common in FPV video systems.

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Summary
在無人機無線傳輸中, antenna selection depends on:

• Deployment location (airborne vs. 地面),

• 傳輸距離 (short/medium vs. 遠距離),

• 環境 (城市的, 鄉村的, 多山),

• 行動性 (fixed ground base vs. 車載式).

• Airborne UAV → Lightweight omnidirectional whip or patch antennas.

• Fixed Ground Station → High-gain Yagi or panel directional antennas.

• Vehicle Ground Station → Fiberglass omnidirectional or whip antennas.