Document Number: 45157

www.vishay.com

Revision: 15-Jun-10

1

VJ 6040 UHF Chip Antenna for Mobile Devices

VJ 6040

Vishay Vitramon

The company’s products are covered by one or more of the

following:

WO2008250262 (A1), US2008303720 (A1),

US2008305750 (A1), WO2008154173 (A1).

Other patents pending.

DESCRIPTION

The VJ 6040 multi-layer ceramic chip antenna is a small

form-factor, high-performance, chip-antenna designed for

TV reception in mobile devices in the UHF band. It allows

mobile TV device manufacturers to design high quality

products that do not bear the penalty of a large external

antenna.

Utilizing

Vishay's

unique

materials

and

manufacturing technologies, this product complies with the

MBRAI standard while maintaining a small outline.

Focusing on consumer applications, the antenna is designed

to be assembled onto a PC board in the standard reflow

process.

Target customers of the VJ 6040 are mobile phone makers,

portable multimedia device makers, notebook OEMs and

ODMs, and accessory card OEMs and ODMs.

The VJ 6040 is the first of a family of products developed by

Vishay, a world leader in manufacturing of discrete and

passive components.

FEATURES

• Small outline (10.5 mm x 15.5 mm x 1.2 mm)

• Omni-directional, linear polarization

• Complies with MBRAI standard

• Complete UHF band coverage (470 MHz to 860 MHz) up

to 1.1 GHz

• Requires a tuning circuit and ground plane for optimal

performance

• Standard SMT assembly

•50

Ω unbalanced interface

• Operating temperature range (- 40 °C to + 85 °C)

• Reference design and evaluation boards available upon

request

• Compliant to RoHS directive 2002/95/EC

APPLICATIONS

• Mobile UHF TV receivers including DVB-T, DVB-H,

ISDB-T, CMMB, ATSC, and MediaFLO devices

ANTENNA PERFORMANCE

Peak gain

The antenna radiation characteristics are influenced by

several factors including ground plane dimensions and

impedance matching network.

The

antenna

parameters

presented

hereafter

were

measured according to the configuration suggested by the

VJ 6040 evaluation board, utilizing its four channel active

digital tuning circuit. The evaluation board ground plane is

40 mm by 80 mm large.

Figure 1 shows peak gain over frequency throughout the

UHF band, compared with the MBRAI requirements.

Fig. 1 - Peak gain vs. Frequency

- 12

- 10

- 8

- 6

- 4

- 2

0

450

500

550

600

650 700 750

800

850 900

Frequency (MHz)

Standard

Measured

Simulated