English
Language : 

MRF24J40MD Datasheet, PDF (12/34 Pages) Microchip Technology – 2.4 GHz IEEE Std. 802.15.4™ RF Transceiver Module with PA/LNA
MRF24J40MD/ME
FIGURE 2-2:
SIMULATED 2D RADIATION PATTERN
FIGURE 2-3:
SIMULATED 3D RADIATION PATTERN
2.2 External Antenna (MRF24J40ME)
The MRF24J40ME module has a 50Ω ultra miniature
coaxial (U.FL) connector to connect to an external 2.4
GHz antenna.
Caution: The U.FL connector is fragile and can only
tolerate very limited number of insertions.
Modular certification of the MRF24J40ME module was
performed with the external antenna types listed in
Table 2-1. An antenna type comprises antennas having
similar in-band and out-of-band radiation patterns.
Refer to Section 3.0 “Regulatory Approval” for
specific regulatory requirements by country.
TABLE 2-1: TESTED EXTERNAL
ANTENNA TYPES
Type
Gain
Whip Dipole
5 dBi
Note 1: An antenna type comprises antennas
having similar in-band and out-of-band
radiation patterns.
DS70005173A-page 12
Advance Information
 2014 Microchip Technology Inc.