Specifications

TYBT2 ,TYBT2-IPEX UserManual
Version1.0.0
6
5.
Antenna Information
5.1
Antenna
type
Antenna for TYBT2 module is using On-board PCB antenna
5.2
Reduce Antenna Interference
In order to have the
best RF performance, It’s recommended to keep a minimum 15mm
distance between the antenna part and the other metal pieces.
Since PCBA manufacture use SMT
process to weld TYBT2 module and other electrical
components onto the PCB board, RF performance will depend on the layout location and pattern
of the On-board PCB antenna. The following figures are some recommended and dis-
recommended demonstrations from out R&D team.
In demonstration 1
and 2 of figure 3, the on-board PCB antenna lays outside of the PCB
frame. It’s recommended to use layout pattern shown in demonstration 1 and 2. Either the on-
board PCB antenna lays outside of the PCB frame directly or PCB frame carve out a certain area
for the antenna. The overall PCBA performance for these two ways will be the same as testing
the
module independently.
Restricted
due to some reason, if the on-board PCB antenna layout has to be inside the
PCB frame, it’s suggested to refer to demonstration 3. The antenna lays inside the PCB frame, but
no copper or wire beneath the antenna. RF performance will have some loss, approximately 1~2
dBm.
It’s NOT
recommended to use demonstration 4, the antenna lays inside the PCB frame,
and there are copper and wire beneath it. RF performance will have significant attenuation.
Figure 3. layout demonstrations
Demonstration 1: Anteennnna lay outside the
PCB fraramme
Demonstration 2: Antennnnaa lay outside
the PCB frame with ccaarved area
Antenan for TYBT2-IPEX module is using IPEX connector Antenna