Description

The ETS-Lindgren Model 3110C Biconical Antenna combines several unique features, achieving high levels of performance.

The balun, feedline, and element cage design give the Model 3110C response curves that are almost linear, making it ideal for swept measurements. The antenna's insensitivity to orientation in the vertical plane helps eliminate any unnoticed or unrecorded change in orientation as the cause for a change in test results.

To achieve this kind of performance, the balun is designed using an unbalanced-to-balanced transformer. This results in very even current transformation. Ferrites are also placed along the feedlines, reducing common mode current that can interfere with the antenna pattern in the vertically polarized measurements.

The 3110C is easy to mount, and now features a stinger mount with square collar. This collar allows for easy polarization alignment when using and ETS-Lindgren mast.

Common applications include measurements to MIL-STD specifications; ANSI C63.4, FCC-18 and EN 55022 emissions testing.

ETS-Lindgren is the only manufacturer to offer optional extended elements. These elements are twice as long as standard elements and enable users to generate high fields at low frequencies with less than 25% of the power usually required.

Unique Element Design
Some biconical antennas exhibit an electrical “bump” at 281 MHz, but ETS-Lindgren's biconical element crosspiece design improves performance by eliminating this problem. The biconical's crosspiece connects the center element to the outer element diminishing the “bump”. Another enhancement is element cages that cannot be over tightened when screwed into the balun.

Improved Balun Design
With a balun constructed from a micro-transformer, the 3110C has a perfect impedance match and balance between 50 Ω and 200 Ω (the impedance of the biconical elements), for the whole frequency range of the antenna.

Compact Size
The compact size of EMCO biconical antennas makes them ideal for anechoic chambers and shielded enclosures. Biconical antennas conserve limited space and help minimize proximity effects.

Quality Construction
Biconical elements are constructed of lightweight corrosion resistant aluminum, providing years of trouble-free indoor and outdoor service.

Flexible Mounting System
The 3110C antenna includes both an EMCO traditional mount, which is ideal for tripod and fits all EMCO masts, and a rear “stinger” mount. The stinger mount permits on-axis rotation/polarization.