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EM-900M-1800U-1900U Element EM-900M-1800U-1900U-A Antenna Assembly

900/1800/1900 MHz Tri-Band Antenna for GSM/DCS/PCS Wireless Applications

Features

· · · · · ·

Efficient MLA Technology GSM/DCS/PCS Bands Peak Gain 0 dBi at 920 MHz Peak Gain 3 dBi at 1800 MHz Peak Gain 3 dBi at 1900 MHz Low Profile of less than 4.4 mm for Embedded Applications--1800 mm3

This 900/1800/1900 MHz antenna is designed using SkyCross' patented MLA technology, providing superior efficiency and gain directivity in a small package. This antenna is the best performance solution for developers implementing a tri-band wireless system in the GSM, DCS and PCS bands where space is at a premium.

Electrical Specifications

Frequency Range Peak Gain 880--960 MHz 1710--1880 MHz 1850-1990 MHz 0 dBi at 920 MHz 3 dBi at 1800 MHz 3 dBi at 1900 MHz <3.5:1 GSM at band edges <3.5:1 DCS at band edges <2.5:1 PCS at band edges Linear Omni-directional

dB

0 -5

Low Band Return Loss

- 10

- 15

VSWR

- 20

- 25 0. 88 0. 89 0. 9 0. 91 0. 92

Fr e que n c y ( G H z )

0. 93

0. 94

0. 95

0. 96

Polarization Azimuth Pattern Feed Impedance

Frequency (GHz)

High Band Return loss

50 Ohms Unbalanced

0 -5

- 10

Mechanical Specifications

Size .97 x 0.51* x 0.17 inches 24.6 x 13.0* x 4.3 mm *width dimension does not include feed 0.8 g

dB

- 15 - 20 - 25 1. 71 1. 75 1. 79 1. 83 1. 87 1. 91 1. 95 1. 99

Weight

Frequency (GHz)

Fr e que n c y ( G H z )

1

EM-900M-1800U-1900U Element EM-900M-1800U-1900U-A Antenna Assembly

Low Band VSWR

6 5. 5 5 4. 5

VSWR

4 3. 5 3 2. 5 2 1. 5 1 0. 88 0. 89 0. 9 0. 91 0. 92

Fr e que n c y ( G H z )

0. 93

0. 94

0. 95

0. 96

Frequency (GHz)

High Band VSWR

6 5. 5 5 4. 5 4

VSWR

3. 5 3 2. 5 2 1. 5 1 1. 71 1. 75 1. 79 1. 83 1. 87 1. 91 1. 95 1. 99

Frequency (GHz)

Fr e que n c y ( G H z )

Low Band Efficiency

100 90 80

Efficiency (%)

70 60 50 40 30 20 10 0 0. 88 0. 89 0. 9 0. 91 0. 92

Fr e que n c y ( G H z )

0. 93

0. 94

0. 95

0. 96

Frequency (GHz)

High Band Efficiency

100 90 80

Efficiency (%)

70 60 50 40 30 20 10 0 1. 71 1. 75 1. 79 1. 83 1. 87 1. 91 1. 95 1. 99

Frequency (GHz)

Fr e que n c y ( G H z )

2

EM-900M-1800U-1900U Element EM-900M-1800U-1900U-A Antenna Assembly

Spherical Gain Contour Map at 920 MHz

Typical Gain Pattern at 920 MHz

Phi = 0 degrees

Phi = 90 degrees

Theta = 90 degrees

3

EM-900M-1800U-1900U Element EM-900M-1800U-1900U-A Antenna Assembly

Spherical Gain Contour Map at 1800 MHz

Typical Gain Pattern at 1800 MHz

Phi = 0 degrees

Phi = 90 degrees

Theta = 90 degrees

4

EM-900M-1800U-1900U Element EM-900M-1800U-1900U-A Antenna Assembly

Spherical Gain Contour Map at 1900 MHz

Typical Gain Pattern at 1900 MHz

Phi = 0 degrees

Phi = 90 degrees

Theta = 90 degrees

© 2004 SkyCross, Inc. SkyCross is a trademark of SkyCross, Inc. All rights reserved. Protected by one or more US Patents, including No. 5,790,080. Additional US and Foreign patents pending. Specification subject to change without notice. For information regarding SkyCross Inc. and its products, see website at www.skycross.com, email [email protected] or call 321-3086600 2-2066

5

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