Specifications

Rev 2.0 Apr.10 Proprietary and Confidential 93

Antenna design

Design of main path, diversity path, and GPS antennas is determined by the host

device OEM and their designated antenna designer.

Note: Modems that support diversity and GPS can use the same secondary (diversity)

antenna for both.

Note: Antennas should be designed before the industrial design is finished to make sure

that the best antennas can be developed.

General antenna design requirements

In addition to passing the specific tests described in Testing on page 94, the main

path and diversity/GPS path antennas should satisfy the following requirements:

• Antenna impedance at feeding terminal = 50

 (A simple matching circuit

with six or fewer components is acceptable at the feeding terminal.)

• Nominally omni-directional radiation pattern in the azimuth plane

Main antenna design requirements

In addition to passing the specific tests described in Testing on page 94, the main

path antenna should satisfy the following requirement:

• Must handle 2 W RF power on low bands and 1 W on high bands.

Measure the power using the following criteria:

• Measure power endurance over a period of 4 hours (estimated talk time)

using a 2 W CW signal—Set the frequency of the CW test signal to the

middle of the PCS Tx band (1880 MHz for PCS).

• Visual inspection must prove there is no damage to the antenna structure and

matching components.

• VSWR/TIS/TRP measurements taken before and after this test must show