Introduction; Visual Quality Requirements; Failures And Corrective Measures; Antenna Position - Nokia 6235 Antenna Description And Troubleshooting

Nokia Customer Care

Introduction

The mobile terminal incorporates an internal antenna. This antenna arrangement is used
for AMPS/CELL and PCS frequency bands. The internal antenna assembly consists of a
Planar Inverted-F Antenna (PIFA) used for the cellular engine and an Inverted-F antenna
(IFA) used for the GPS engine, which is placed on the side of internal antenna body.

Visual Quality Requirements

Following are the minimum acceptable visual quality requirements of the internal
antenna assembly:
• Gloves must be used when handling antennas. Do not touch the antenna radiator
with bare hands.
• No visual cracks or mechanical defects.
• No oil, dirt, or particles are present on the parts.
• Radiator must be aligned with the plastic housing.
• GPS antenna contacts must be inside the plastic housing.
• Radiator must be flat with no warping.
• All pins must be at the same level.

Failures and Corrective Measures

Antenna Position

The internal antenna is assembled into the B-cover as shown in
antenna is installed, the antenna gain will be degraded by more than 25 dB.
If the internal antenna is missing, install one. If the radiator looks obviously damaged,
then replace the internal antenna.

Internal Antenna

The internal antenna includes a planar-inverted F antenna (PIFA) radiator and an
inverted F antenna (IFA), which is the GPS antenna radiator, attached to a plastic carrier.
Issue 1 04/2005
Internal antenna
Figure 1: B-cover assembly
©2005 Nokia Corporation
6235/6235i/6236i (RM-60)
Antenna Description and Troubleshooting
Company Confidential
Figure 1. If no internal
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