Benelec - EMI/EMF Bicone Antenna 110

110-1000MHz

Description

The Bicone antenna is an economical, receive only unit, ideally suited to the measurement of EMI and EMF. It is constructed of two conical dipole halves centre fed through a Balun transformer. The Balun offers decoupling between the feed cable and the radiating elements, as well as a balanced feed system for good stable radiation pattern performance. The broadband frequency capability of this antenna eliminates the need for band switching, antenna substitution, or element extension.

The compact size is advantageous for use in anechoic chambers and shielded enclosures.

Applications

EMI & EMF measurements and other applications requiring broadband reception with a dependable radiation pattern.

Construction

The antenna Mounting tube and elements are constructed of Stainless Steel. The centre hub is delrin. Radiating elements are removable for ease of transport and storage.

Specifications

Electrical

Model Frequency
MHz ^Gain (dBD) @10M Tuned
Bandwidth Operating
VSWR Input
Impedance Vertical
Beamwidth Horizontal
Beamwidth

02678 110-900 See Below 890 MHz <4.0:1 50 Ohms (Nominal) See Below See Below

50 -8.00 100 Deg *Omni -2.0dB

100 -8.00 100 Deg *Omni -1.0dB

200 -3.00 80 Deg *Omni -6.0dB

300 -1.00 80 Deg *Omni -3.5dB

400 0.00 80 Deg *Omni -4.0dB

600 0.00 50 Deg *Omni -4.0dB

900 +2.00 30 Deg *Omni -6.5dB

* Maximum deviation below stated gain, through 360 Degrees. See Radiation Patterns for further detail.

^At 10 Metres.

Model Frequency
MHz ^Gain (dBD) @10M Antenna Factor @10M

02678

50 -8.00 10.00

100 -8.00 16.00

200 -3.00 17.00

300 -1.00 18.60

400 0.00 20.10

600 0.00 23.60

900 +2.00 25.10

Mechanical

Model Construction Length (m) Width
(m) Weight
(kg) Termination Projected
Area Wind Loading
@160 KPH

02678 S/Steel, Chromed Brass, Delrin 0.8 0.8 1.3 N Female 0.022 SQM 2.4 KG

Radiation Patterns

E Plane @ Frequency: 50 MHz

H Plane @ Frequency: 50 MHz

3 DB E Plane Beamwidth: 100 Deg
Frequency: 50 MHz
Gain: -8.00 dB                                                   [Dwg 255] [Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 50 MHz
Gain: -8.00 dB                                                   [Dwg 262][Rev 01]

E Plane @ Frequency: 100 MHz

H Plane @ Frequency: 100 MHz

3 DB E Plane Beamwidth: 100 Deg
Frequency: 100 MHz
Gain: -8.00 dB                                                   [Dwg 251] [Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 100 MHz
Gain: -8.00 dB                                                  [Dwg 258][Rev 01]

E Plane @ Frequency: 200 MHz

H Plane @ Frequency: 200 MHz

3 DB E Plane Beamwidth: 80
Frequency: 200 MHz
Gain: -3.00 dB                                                [Dwg 252][Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 200 MHz
Gain: -3.00 dB                                                 [Dwg 259][Rev 01]

E Plane @ Frequency: 300 MHz

H Plane @ Frequency: 300 MHz

3 DB E Plane Beamwidth: 80
Frequency: 300 MHz
Gain: -1.00 dB                                                  [Dwg 253][Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 300 MHz
Gain: -1.00 dB                                              [Dwg 260][Rev 01]

E Plane @ Frequency: 400 MHz

H Plane @ Frequency: 400 MHz

3 DB E Plane Beamwidth: 80
Frequency: 400 MHz
Gain: 0.00 dB                                                     [Dwg 254][Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 400 MHz
Gain: 0.00 dB                                                 [Dwg 261][Rev 01]

E Plane @ Frequency: 600 MHz

H Plane @ Frequency: 600 MHz

3 DB E Plane Beamwidth: N/A
Frequency: 600 MHz
Gain: 0.00 dB                                                     [Dwg 256][Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 600 MHz
Gain: 0.00 dB                                                   [Dwg 263][Rev 01]

E Plane @ Frequency: 900 MHz

H Plane @ Frequency: 900 MHz

3 DB E Plane Beamwidth: 30
Frequency: 900 MHz
Gain: 2.00 dB                                                     [Dwg 257][Rev 01] 3 DB H Plane Beamwidth: Omni
Frequency: 900 MHz
Gain: 2.00 dB                                                  [Dwg 264][Rev 01]

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E Plane @ Frequency: 50 MHz	H Plane @ Frequency: 50 MHz

3 DB E Plane Beamwidth: 100 Deg Frequency: 50 MHz Gain: -8.00 dB [Dwg 255] [Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 50 MHz Gain: -8.00 dB [Dwg 262][Rev 01]

E Plane @ Frequency: 100 MHz	H Plane @ Frequency: 100 MHz

3 DB E Plane Beamwidth: 100 Deg Frequency: 100 MHz Gain: -8.00 dB [Dwg 251] [Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 100 MHz Gain: -8.00 dB [Dwg 258][Rev 01]

E Plane @ Frequency: 200 MHz	H Plane @ Frequency: 200 MHz

3 DB E Plane Beamwidth: 80 Frequency: 200 MHz Gain: -3.00 dB [Dwg 252][Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 200 MHz Gain: -3.00 dB [Dwg 259][Rev 01]

E Plane @ Frequency: 300 MHz	H Plane @ Frequency: 300 MHz

3 DB E Plane Beamwidth: 80 Frequency: 300 MHz Gain: -1.00 dB [Dwg 253][Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 300 MHz Gain: -1.00 dB [Dwg 260][Rev 01]

E Plane @ Frequency: 400 MHz	H Plane @ Frequency: 400 MHz

3 DB E Plane Beamwidth: 80 Frequency: 400 MHz Gain: 0.00 dB [Dwg 254][Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 400 MHz Gain: 0.00 dB [Dwg 261][Rev 01]

E Plane @ Frequency: 600 MHz	H Plane @ Frequency: 600 MHz

3 DB E Plane Beamwidth: N/A Frequency: 600 MHz Gain: 0.00 dB [Dwg 256][Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 600 MHz Gain: 0.00 dB [Dwg 263][Rev 01]

E Plane @ Frequency: 900 MHz	H Plane @ Frequency: 900 MHz

3 DB E Plane Beamwidth: 30 Frequency: 900 MHz Gain: 2.00 dB [Dwg 257][Rev 01]	3 DB H Plane Beamwidth: Omni Frequency: 900 MHz Gain: 2.00 dB [Dwg 264][Rev 01]