Atec Sunol-JB User Manual

Broadband

EMC Test Antennas

Specifications, JB Series Antennas

Frequency range: See below
Impedance: 50 ohms nominal
VSWR: <2:1 above 200 MHz
Connector: Type N female
Polarization: Linear
Imbalance: Less than 1 dB
Max. Power: See curve
Length: 51 in. (130 cm)
Wing span: 44 in. (112 cm)
Width: 19 in. (48 cm)
Weight: 10 lbs. (5 kg)
Mounting Tube: 22 mm stainless steel
Wing Mount: Dual compression
Finish: Sunol powdercoat

JB Series antennas are compact, high­performance instruments designed for
EMC emissions and immunity testing.
The broadband characteristics of these antennas enable them to operate over a wide
frequency range - a must for automated test environments. Innovative design and
manufacturing techniques result in long-lasting strength and mechanical integrity. The result is
an electrically stable measuring instrument that maintains calibration over extended use.

The antenna boom is made from a custom aluminum extrusion that reduces the number of
parts at the nose. The result is a stronger, more stable feedpoint and excellent cross­polarization properties. The unique shape allows for a larger feed cable to be used, which
significantly increases the maximum power rating. Dipole elements are permanently attached
to the boom by an assembly technique that maintains excellent electrical characteristics for the
life of the antenna.

The low-frequency wings are swept forward and turned in at the ends to reduce ground plane
coupling while maintaining performance. Each wing is attached with dual compression fittings
for true alignment. A tough powdercoat finish with UV inhibitors seals the aluminum structure
and protects it from sunlight and moisture.

Model

JB1
JB3
JB5
JB6

Frequency

30 - 2000 MHz
30 - 3000 MHz
30 - 5000 MHz
30 - 6000 MHz

Includes Individual A2LA accredited calibration

Options

• Sunol SNAP! mount

• Tripod mount

• Carrying case

Sunol Sciences Corporation

Model JB1

Applications

• Radiated emissions

• Radiated immunity

• Pre-scan / Full-compliance

30 MHz – 6 GHz

6780 Sierra Court, Suite R • Dublin, California 94568 • Tel: [phone] • Fax: [phone]

[e-mail] • www.sunolsciences.com

Mounting

All Sunol antennas have a 22 mm stainless steel rear mounting
tube. This configuration enables polarization changes without
vertical displacement of the antenna, and minimizes the effect of
the RF cable by keeping it well behind the antenna elements.

UICK

• Q

ECURE

• S

• N

O UNWANTED ROTATION

TOWER BOOM

SNAP!

MOUNT

The Sunol SNAP! mount provides a secure interface to most
antenna positioning towers. It locks the antenna in place,
prevents unwanted rotation and facilitates rapid antenna changes.

1400

1200

1000

800

600

400

200

Max. Input Power (watts)

0

30 50 70

100 200 300 500 700 2000 3000 60001000

Frequency (MHz)

JB Series Antennas (cont.)

MAX POWER

Typical E-field Antenna Factor, JB Series Antennas

45

40

35

30

25

20

Antenna Factor (dB)

15

10

5

30 50

70 100 200 300 500 700 1000 2000 3000 6000

Frequency (MHz)

Sunol Sciences Corporation

6780 Sierra Court, Suite R • Dublin, California 94568 • Tel: [phone] • Fax: [phone]

[e-mail] • www.sunolsciences.com