EnOcean GmbH TCM515B Manual Do Utilizador
USER MANUAL
TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver
© 2017 EnOcean | www.enocean.com
F-710-017, V1.0
TCM 515B User Manual | v0.5 | October 2017 | Page 23/37
w = 1.00mm
s = 0.15mm
h =
0.90…2.00m
m
(see
Note 1)
Typical line
impedance
on
FR4=44…56
Ω
Return
loss>=24dB
s = 0.15mm
h =
0.90…2.00m
m
(see
Note 1)
Typical line
impedance
on
FR4=44…56
Ω
Return
loss>=24dB
Figure 16 – Transmission line specification
Note (1): Coplanar waveguide modes are dominant in this configuration. Thus thickness of
substrate can be changed with the given limits.
4.2.4.2
Meandered PCB Antenna
TCM 515B has been certified for use with a meandered PCB antenna provided that the fol-
lowing layout guidelines are met:
lowing layout guidelines are met:
Matching circuit values of the modular approval may not be changed, use matching
circuit components as specified in Table 5
circuit components as specified in Table 5
Shape according to reference layout in Figure 17
Minimum GND plane: 40 mm x 18 mm
Connect GND planes using multiple via as shown in Figure 17
Minimum distance space: 10 mm
PCB Stack of the modular approval may not be changed,
use PCB stack as specified in Figure 18
– PCB stack specification for meandered PCB
antenna
Side View
Top View
Grounded Coplanar Waveguide (GCPW)
Line heigth: h
line gap: s
line width: w
Line length: l
GND
GND
optional layer(s)
other signals (optional)
other signals (optional)
GND vias
GND vias