Which Kind Of Drone Jammer Antenna Is Easy To Use

The antenna of the UAV jammer is not absolutely "the best". The core is to choose according to the use scenario: the omnidirectional antenna is suitable for 360° global defense, and the directional antenna is suitable for long-distance precision strikes.The following are the mainstream types, performance and selection recommendations：
1. Mainstream antenna types and core characteristics
1. Omnidirectional antenna (most commonly used, 360° coverage)
Appearance: Glass fiber reinforced plastic rod-shaped, whip-shaped, vertically installed
Gain: 2-6 dBi (low gain, energy dispersion)
Advantages: No dead angle coverage, simple operation, no need to aim, suitable for simultaneous defense in multiple directions
Disadvantages: Short interference distance (only 1/3–1/2 of the orientation at the same power), easy to interfere with normal peripheral communication
Typical scenarios: base station /vehicle global defense, temporary security, low-altitude protection of residential / factory areas
2. Directional antenna (long-range precision strike)
Plate / flat panel antenna (most commonly used)
Gain: 8-15 dBi, beam angle 30°-60°
Advantages: Taking into account distance and ease of use, multi-band compatibility, and portability (gun-type jammer comes standard)
Scene: Handheld / individual counter-control, fixed-point defense, long-distance drive (500-2000 meters)
Yagi Antenna
Gain: 10-18 dBi, narrow beam
Advantages: High directional gain, simple structure, low cost
Disadvantages: narrow bandwidth, single-band-based, need for precise alignment
Scenario: fixed point, long-distance single-band interference
Parabolic / horn antenna
Gain: 20-30 dBi, very narrow beam (5°-15°)
Advantages: Ultra-long-distance suppression (3-5 kilometers +), high concentration of energy
Disadvantages: Bulky, requires accurate tracking, and is not suitable for mobile scenarios
Scenario: Fixed base stations, remote countermeasures in border / high-value areas
3. Spiral / circularly polarized antenna
Features: Suitable for circularly polarized signals of drones (such as GPS and some image transmission), anti-multipath interference
Purpose: Dedicated to GPS interference module to improve the suppression effect of navigation signals
2. The core principles of selection (selected by scene)
Scenario 1: Global defense (360° without dead ends)
First choice: omnidirectional glass fiber reinforced plastic antenna (4-6 dBi)
Collocation: base station type / vehicle jammer, covering a radius of 500-1000 meters
Scenario 2: Handheld / Individual counterattack (flexible strike)
First choice: high-gain plate directional antenna (10-12 dBi)
Reasons: portable, moderate gain, multi-band, fast aiming, interference distance 500-1500 meters
Scenario 3: Long-range precision strike (≥2 kilometers)
First choice: Parabolic / high gain Yagi antenna (18-25 dBi)
Requirements: fixed deployment, precise alignment, multi-band combination
Scenario 4: Dedicated for GPS/navigation interference
First choice: Circularly polarized spiral antenna (for 1.5GHz GPS band)
3. Key parameters and pit avoidance
Gain vs distance: for every +3 dBi gain, the theoretical distance ×√2; however, the higher the directional gain, the smaller the coverage angle
Frequency band matching: it must cover 2.4G/5.8G (image transmission/remote control) +1.5G (GPS), otherwise it cannot be completely forced to land
Polarization method: Circular polarization is commonly used in drones, and dual polarization / circular polarization is preferred for directional antennas to avoid signal mismatch.
Regulatory restrictions: The transmission power of civilian equipment is usually ≤10W, and high-gain antennas are a means of compliance to increase the distance.
Four, quick selection conclusion
To have global coverage, simple and easy to use → Choose an omnidirectional antenna
To be hand-held, flexible, medium and long-distance→ choose a plate-type directional antenna (10-12 dBi)
Ultra-long-distance, fixed-point suppression → choose parabolic / high-gain Yagi antenna
To accurately interfere with GPS→ choose a circularly polarized spiral antenna