A Super Wide Band, High Performance Log Periodic Dipole Array - 10MHz to 54MHz inclusive.

All InnovAntennas LPDA’s are design using the very latest computer optimisation techniques and are largely designed and built to order although examples such as this Dense Element Log Periodic Dipole Array (DELPA) are displayed and advertised in order to give an idea of our capabilities and pricing.

This antenna was specifically designed for a requirement at Broadcast Central Europe and the example photos display the DELPA-13 installed at the BCE broadcast centre.

The DELPA-13 has 11 elements placed above a 11.5m long 3’’ diameter boom of which all elements are insulated. The feed point is 200Ohm and is fitted with a 20KW 4:1 balun. Feed-line between the elements is hard-drawn copper wire which is silver plated and spaced in order to produce a 300Ohm balanced-line feed.

The DELPA-13 provides excellent, consistent results for the frequency range it covers and the relatively limited number of elements.

Some of the Mechanical design benefits include:

• Marine grade Stainless Steel Fittings*
• Integrated feed-line/boom for maximum efficiency, minimum wind-load
• Sliver-plated balanced line feed
• Mill finished for highest levels of accuracy and performance

* Where possible marine grade stainless steel components are used.

If you are looking for the best of the best from both a performance and mechanical construction perspective then look no further, you have come to the right place!

Technical Specifications:

• Typical Gain: 6dBi
• Gain at 10m (33') above ground: 10dBi
• Power Rating: 15kw+
• Feed Impedance: 50 Ohm
• Boom Length: 11.5m
• Weight: 75Kg
• Turning Radius: 6.3m
• Wind Loading: Upon Application
• Wind Survival: 160KPH / 100MPH - Higher rated versions available upon request

If you wish to stack several antennas, contact us for more information

The largest eleemnts on this antenna start at the centre at 38mm (1.5'') diameter and taper to 10mm (3/8''). The singal boom version uses a 76mm (3'') square boom. The favoured twin-boom version has double 45mm square booms which also operate at the feedpoint.