Hybrid J-Pole antenna 2.5dbi 1280Mhz

Hybrid J-Pole Antenna – Precision-Tuned for 1280 MHz

Operating in the 1.2 GHz band requires precision, efficiency, and mechanical resilience—especially for airborne and mobile systems. Our 1280 MHz hybrid J-Pole antenna is designed specifically for high-frequency applications where compact size, reliability, and signal integrity are critical.

The J-Pole Advantage at Higher Frequencies

While the J-Pole is known for its simplicity, it scales very effectively into higher frequencies. At 1280 MHz, its shorter physical length allows for even more compact implementations while retaining key benefits:

• Direct 50-ohm feed via a quarter-wave stub

• No baluns or tuning circuits needed

• Balanced radiation pattern with no ground plane required

• Low-profile structure, perfect for drones and mobile equipment

Ideal Use Cases

• FPV and digital video transmission

• High-frequency drone telemetry (UAV/UAS)

• Advanced RF sensing and data uplinks

• Short-range microwave links

• Compact ground or mobile stations

Materials & Construction

• Stub and base: FR4 PCB with copper traces

• Radiator: Stiffened PVC-coated steel wire

• Connector: Gold-plated SMA

• Form factor: Slim and rugged for field use

Electrical Characteristics

• Center Frequency: 1280 MHz

• Bandwidth: ≥ 20 MHz @ RL < -13 dB

• VSWR: < 1.15 at center frequency

• Gain: ~2.5 dBi (omnidirectional in H-plane)

• Weight: < 10 grams

• Connector: SMA (male standard)

• Tuning: Individually calibrated and tested

Deployment Options

• Short Version (Rigid):

  • 6 cm RG402 semi-rigid coax

  • Lightweight and impact-resistant—ideal for UAV frames or pods

• Long Version (Flexible):

  • 1 meter RG316D flexible coax

  • Mount to mast, tripod, or mobile kit

Applications

• FPV systems with low-latency video transmission

• L-band UAV/UAS telemetry and command links

• Microwave data relays for robotics or IoT

• Emergency field communications

• Portable ground control stations

Built to Withstand Real Conditions

Designed with harsh environments in mind, this antenna’s hybrid construction ensures:

• High mechanical strength (resists bending and shocks)

• Excellent weather resistance (moisture, dust, UV)

• Consistent electrical performance across temperature swings

How It Stacks Up Against the Bardpole

The Bardpole has earned its reputation—no argument there. But our Hybrid J-Pole brings its own advantages to the table:

• Just as precise (or better) – Matches or exceeds the Bardpole’s tuning and bandwidth.

• Built tougher – Spring steel core resists bends, drops, and vibrations.

• More flexibility – Choose your cable length and connector type to fit your setup.

• Same compact profile – Lightweight and streamlined for FPV and telemetry use.

• No guesswork – Every antenna is individually tuned, so performance stays consistent.