LPDP-1330
UHF Dual Polarized Log Periodic Antenna
| Model | Product Description | Frequency | Gain | Download | Enquiry | |
|---|---|---|---|---|---|---|
| LPDP-1330 | UHF Dual Polarized Log Periodic Antenna | 1300-3000MHz | 7 dBi. |  |  |  |
The LPDP-1330 is a precision-engineered Dual Polarized Log Periodic Dipole Antenna (LPDA) designed for high-performance directional communication across the 1300–3000 MHz spectrum. Encompassing the L-Band and S-Band frequencies, this compact cross-element array is optimized for simultaneous vertical and horizontal signal processing. With a robust 250W power handling capacity and a streamlined 0.2-meter profile, it is an essential tool for high-speed data transmission, tactical monitoring, and electronic countermeasures (ECM).
Design: Microwave Precision & High-Density Performance
The LPDP-1330 is designed for the modern electronic battlefield, where high-frequency data links and cellular bands (GSM/LTE/Wi-Fi) are primary targets.
- Dual-Port Polarization Mastery: Featuring 2 x N-Female input terminations, the antenna captures E & H polarized signals simultaneously. This is critical for preventing "signal fading" caused by the rapid movement of mobile targets or reflections in high-multipath urban environments.
- Unloaded Frequency Integrity: By avoiding electrical loading to reduce its size, the LPDP-1330 maintains a highly efficient radiation pattern and a consistent 7 dBi gain across the entire 1700 MHz bandwidth.
- Ultra-Compact Footprint: At only 0.2 meters (8 inches) long, this antenna is ideal for space-constrained installations, including small vehicle mounts, portable tripod setups, or concealed monitoring points.
Construction: Industrial Hardening & Stability
Constructed entirely from high-grade aluminum, the LPDP-1330 is built for rapid deployment and long-term environmental survival.
- Fully Assembled Logistics: The antenna is supplied in a complete, assembled condition, allowing for immediate "plug-and-play" installation. The mounting hardware is positioned at the rear of the support boom to eliminate radiation pattern distortion from the mounting mast.
- Integrated D.C. Grounding: The system operates at D.C. ground, providing a low-resistance path for lightning protection and significantly reducing atmospheric noise for sensitive spectrum monitoring applications.
- Stainless Steel Fasteners: All screws, nuts, and bolts are crafted from high-quality stainless steel, ensuring the antenna remains corrosion-free even in high-humidity or coastal zones.
Reliability: 250W Mission-Critical Power
With its 250 Watt power capacity, the LPDP-1330 is robust enough for continuous-duty jamming and high-bandwidth telemetry. The 75-degree beamwidth provides a precise directional focus, while the 14 dB Front-to-Back ratio ensures maximum energy is projected toward the target while shielding friendly equipment located behind the antenna.
Technical Features
- Simultaneous Dual Polarization: Captures both Vertical and Horizontal signals without mechanical rotation.
- 1300–3000 MHz Bandwidth: Covers S-Band radar, GSM, 4G/5G, and Wi-Fi bands in one unit.
- High-Power 250W Rating: Engineered for high-duty cycle electronic warfare (EW).
- Compact 200mm Profile: Minimal visual and physical footprint for tactical applications.
- Rear-End Mounting Clamp: Securely fits up to 52mm (2-inch) masts without interfering with the array.
- Rugged All-Aluminum Build: Lightweight (3 Kgs) yet capable of withstanding 200 Km/Hr winds.
- D.C. Grounded Safety: Integrated lightning protection and enhanced noise immunity.
- Wide Operating Range: Reliable performance from -30°C up to +70°C.
Integration Guide: Maximizing S-Band Intercepts
1. Defeating Multipath Fading
In urban settings, microwave signals (1.3–3 GHz) reflect off buildings like mirrors. These reflections cause the signal to arrive at the antenna with rotated polarization.
- The Solution: By using both ports of the LPDP-1330, your receiver captures the signal on both the vertical and horizontal planes, ensuring a 100% intercept rate even during complex signal rotations.
2. Coaxial Selection at 3 GHz
At frequencies up to 3000 MHz, cable loss is the primary enemy of signal strength.
- Recommendation: Use high-quality, low-loss cables like LMR-400 or LMR-600 for runs exceeding 5 meters. Keep all connections weather-sealed with butyl tape to prevent moisture from causing a VSWR spike.
3. Site Protection & Safety
At 250 Watts, a high-power microwave beam is being projected. The 14 dB Front-to-Back ratio is vital for operator safety, as it ensures the majority of RF energy is directed away from the personnel and sensitive monitoring equipment behind the mast.
Design Features: The LPDP-1330 dual polarized log periodic antenna is designed to provide wideband directional transmission/reception of horizontal and vertical radio signals from 1300-3000 MHz bands. The extra spacers are used between the support booms to improve mechanical durability of antenna. This dual polarized log periodic dipole antenna system is particular suitable for transmission, reception, monitoring, scanning and jamming applications due to its capability of receiving/transmitting both the E & H polarized signals. This high gain LP provides strong performance over the entire frequency of 1300-3000 MHz as the LPDA does not use loading technique to reduce the overall size of array.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
