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هوائي متعدد الاتجاهات

تكرر	يكسب	مقاس	مأtهصأناأل
1420-1530محz	2دبأنا	Φ1 X 15سم	Fأنابهصزلأقق
1420-1530محz	2دبأنا	Φ1.3 X 12سم	Fأنابهصزلأقق
1370-1450محz	2دبأنا	Φ1.3 X 16سم	Fأنابهصزلأقق
1420-1530محz	2دبأنا	Φ4.1 X 2.6جم	ABS
902-928محz	2دبأنا	Φ1 X 15سم	Fأنابهصزلأقق
902-928محz	2دبأنا	Φ1.3 X 17سم	Fأنابهصزلأقق
840-845محz	2دبأنا	Φ1.3 X 16سم	Fأنابهصزلأقق
806-826محz	2دبأنا	Φ3.8 X 25cm	Fأنابهصزلأقق

Omnidirectional Shock-Absorbing Spring Antenna

تكرر	يكسب	مقاس	مأtهصأناأل
1420-1530محz	3دبأنا	Φ1.6 X 25سم	Fأنابهصزلأقق
1420-1530محz	4دبأنا	Φ1.6 X 35سم	Fأنابهصزلأقق
1370-1450محz	5دبأنا	Φ1.6 X 50سم	Fأنابهصزلأقق
1370-1450محz	6دبأنا	Φ1.6 X 60سم	Fأنابهصزلأقق
802-926محz	4دبأنا	Φ1.6 X 55سم	Fأنابهصزلأقق
566-678محz	4دبأنا	Φ1.6 X 70سم	Fأنابهصزلأقق
634-674محz	6دبأنا	Φ2 X 120سم	Fأنابهصزلأقق
512-562محz	6دبأنا	Φ1.4 X 140سم	Fأنابهصزلأقق
806-826محz	2دبأنا	Φ3.8 X 25سم	Fأنابهصزلأقق

Omnidirectional Flexible Gooseneck Antenna

تكرر	يكسب	مقاس	مأtهصأناأل
566-678محz	1دبأنا	Φ1.3 X 28cm	Fأنابهصزلأقق
566-803محz	2+1ديسيبل 3+1دبأنا	Φ1.6 X 60cm	Fأنابهصزلأقق
806-826محz	2دبأنا	Φ1.3 X 36cm	Fأنابهصزلأقق
703-803محz	4.5دبأنا	Φ1.3 X 47cm	Fأنابهصزلأقق
1420-1530محz	2دبأنا	Φ1.3 X 25سم	Fأنابهصزلأقق
1420-1530محz	3دبأنا	Φ1.3 X 31cm	Fأنابهصزلأقق
1350-1450محz	4دبأنا	Φ1.3 X 60cm	Fأنابهصزلأقق
1370-1450محz	5دبأنا	Φ1.6 X 50cm	Fأنابهصزلأقق
1370-1450محz	6دبأنا	Φ1.6 X 60cm	Fأنابهصزلأقق
802-926محz	4دبأنا	Φ1.6 X 55سم	Fأنابهصزلأقق
566-678محz	4دبأنا	Φ1.6 X 70cm	Fأنابهصزلأقق
634-674محz	6دبأنا	Φ2 X 120cm	Fأنابهصزلأقق
512-562محz	6دبأنا	Φ1.4 X 140cm	Fأنابهصزلأقق
806-826محz	2دبأنا	Φ3.8 X 25cm	Fأنابهصزلأقق

Airborne Blade Antennaنموذج

تكرر	يكسب	مقاس	مادة
1420-1530ميغاهيرتز	2ديسيبل	2.7 X 2.4 X 12cm	3-proof ABS
1420-1530ميغاهيرتز	2ديسيبل	11.6 X 8 X 15.5cm	Fiberglass
1350-1470ميغاهيرتز	4ديسيبل	9.2 X 4.2 X 32.5cm	3-proof ABS
1350-1470ميغاهيرتز	6ديسيبل	9.2 X 4.2 X 48cm	3-proof ABS
566-678ميغاهيرتز	1ديسيبل	9.2 X 4.2 X 16cm	3-proof ABS
566-678ميغاهيرتز	1ديسيبل	11.6 X 8 X 15.5cm	Fiberglass
840-845ميغاهيرتز	1ديسيبل	9.2 X 4.2 X 16cm	3-proof ABS
840-845ميغاهيرتز	1ديسيبل	11.6 X 8 X 15.5cm	Fiberglass
240-320ميغاهيرتز	2ديسيبل	9.2 X 4.2 X 16cm	Fiberglass

3-proof ABS: High-quality ABS, ضد للماء, dustproof and corrosion-resistant

1. UAV Drone Antenna Frequency Gain and Length

Antenna Classification in UAV Wireless Video Transmission

In UAV wireless video transmission and telemetry systems, antennas play a critical role in determining transmission distance, استقرار الإشارة, anti-interference performance, and overall reliability. 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.

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

  • الاستخدام الشائع: UAV airborne side, handheld ground controllers.

  • أمثلة: Whip antennas, fiberglass omnidirectional antennas.

• هوائيات الاتجاه

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

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

  • Drawback: Require alignment toward the UAV.

  • الاستخدام الشائع: Ground stations and fixed receivers.

  • أمثلة: Yagi antennas, panel antennas, parabolic antennas.

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2. حسب سيناريو التطبيق (Deployment Location)

• Airborne UAV Antennas

  • خفيف الوزن, مدمج, مقاومة للاهتزاز, often omnidirectional to ensure stable connectivity in flight.

  • أمثلة: 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.

  • أمثلة: Yagi antennas, 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.

• Yagi Antennas

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

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

• Whip Antennas

  • نحيل, rod-shaped, typically omnidirectional.

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

• Patch Antennas

  • مدمج, خفيفة الوزن, 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 ميغاهيرتز / 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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ملخص
في البث اللاسلكي بدون طيار, antenna selection depends on:

• Deployment location (airborne vs. أرضي),

• مسافة الإرسال (short/medium vs. طويلة المدى),

• بيئة (حضري, ريفي, جبلية),

• Mobility (fixed ground base vs. محمولة على السيارة).

• 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.