Antenna Design; Hirose Antenna Connector; Figure 33: Mechanical Dimensions Of U.fl-R-Smt Connector; Table 23: Product Specifications Of U.fl-R-Smt Connector - Siemens MC45 Manual

MC45 Hardware Interface Description
P R E L I M I N A R Y

5.4 Antenna design

This chapter describes the various options of connecting an external antenna to MC45. Be
sure that all peripherals are applied according to the manufacturer's antenna specifications.
For internal antenna equipment, you are advised to use the services of a consultant or full-
service house.

5.4.1 Hirose antenna connector

MC45 uses an ultra-miniature SMT antenna connector supplied
from Hirose Ltd. The product name is:
U.FL-R-SMT
The position of the antenna connector on the MC45 board can be
seen in Figure 28.

Figure 33: Mechanical dimensions of U.FL-R-SMT connector

Table 23: Product specifications of U.FL-R-SMT connector

Item
Ratings
Nominal impedance
Rated frequency
Mechanical characteristics
Female contact holding
force
Repetitive operation
Vibration
Shock
Environmental characteristics
Humidity resistance
MC45_HD_01_V00.02a
Specification
50 W
DC to 3 GHz
0.15 N min
Contact resistance:
Center 25 m W
Outside 15m W
No momentary disconnections of
1 µs;
No damage, cracks and looseness
of parts
No momentary disconnections of
1 µs.
No damage, cracks and looseness
of parts.
No damage, cracks and looseness
of parts.
Insulation resistance:
100 M W min. at high humidity
500 M W min when dry
Page 72 of 90
Conditions
Operating temp:-40°c to + 90°C
Operating humidity: max. 90%
Measured with a Æ 0.475 pin
gauge
30 cycles of insertion and
disengagement
Frequency of 10 to 100 Hz, single
amplitude of 1.5 mm,
2
acceleration of 59 m/s , for 5
cycles in the direction of each of
the 3 axes
Acceleration of 735 m/s
duration for 6 cycles in the
direction of each of the 3 axes
Exposure to 40°C, humidity of
95% for a total of 96 hours
2
, 11 ms
12.08.2002