The ULLP series log periodic antennas deliver superior gain and linear polarization across an ultra-wide 100 MHz to 6000 MHz frequency range with VSWR < 3. Constructed entirely from lightweight, high-strength aluminum, these medium-gain dipole arrays offer zero maintenance, long-term reliability, and easy polarization adjustment on any plane. Custom frequency specifications are available upon request.
Log Periodic Antenna – ULLP Series
Log periodic antennas are designed for transmitting and receiving signals over extremely wide frequency ranges with consistent performance. They provide excellent gain at every in-band frequency, use linear polarization, and can be easily adjusted for polarization in any plane. The ULLP series from our company represents a family of lightweight, medium-gain log periodic dipole arrays built to deliver dependable broadband operation from 100 MHz to 6000 MHz with a VSWR of less than 3 across the entire band.
Key Features
Ultra-Wide Frequency Coverage: Continuous operation from 100 MHz to 6000 MHz in a single antenna, eliminating the need for multiple narrowband antennas.
Stable In-Band Gain: Maintains superior, consistent gain across the full frequency range, ensuring reliable signal levels for both transmit and receive applications.
Linear Polarization with Easy Adjustment: Linear polarization simplifies integration, and the antenna’s mechanical design allows polarization to be easily changed in any plane without complex fixtures.
Low VSWR: Achieves a VSWR of less than 3 over the entire 100 MHz–6000 MHz band, guaranteeing efficient power transfer and minimal signal reflection.
All-Aluminum Construction: Fully built from aluminum alloy, resulting in a lightweight yet extremely strong antenna structure that withstands harsh environments without corrosion or fatigue.
Zero Maintenance: Rugged, passive design with no moving parts or active electronics ensures maintenance-free, long-term, stable, and reliable operation.
Customizable: Special frequency requirements and other specifications can be accommodated through our custom design service to perfectly match your application.
Specifications
Model Frequency (MHz) VSWR (Typical) Gain (Typ) (dBi) 3dB Beam Width (°) Connector Type Dimension (L×W) mm
ULLP1050 100~500 2:01 6 120~50 N 2600×1800
ULLP1080 100~800 3:01 6 120~50 N 2600×1800
ULLP10100 100~1000 3:01 6 120~50 N 2600×1800
ULLP1350 130~500 3:01 6 120~50 N 2300×1350
ULLP18100 180~1000 3:01 6 120~50 N 1300×900
ULLP18200 180~2000 3:01 6 120~50 N 1300×900
ULLP2080 200~800 3:01 7 120~50 N 1250×860
ULLP20200 200~2000 3:01 7 120~50 N 1250×860
ULLP25100 250~1000 2.5:1 7 120~50 N 1055×680
ULLP30200 300~2000 3:01 6 120~50 N 900×560
ULLP40200 400~2000 2.5:1 6 120~50 N 800×410
ULLPS50300 500~3000 3:01 6 120~50 N 600×350
ULLP80500 800~5000 3:01 6 120~50 N 500×320
ULLP100400 1000~4000 3:01 6 120~50 N 450×220
ULLP100600 1000~6000 3:01 6 120~50 N 450×220
