Specifications

EMMY-W1 Antenna reference design
UBX-16015910 Page 6 of 12
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4 Reference designs for antenna pin 1
This section describes the available designs for the antenna pin 1 of the EMMY-W1 modules.
Figure 5: Reference schematic for antenna pin 1
4.1 Internal antenna
The reference design with internal antenna uses the SMD Antenova type A10194 dual band antenna that is
connected to the module RF-port via a coplanar micro-strip transmission line.
4.1.1 Bill of materials
Reference
designator
Description Manufacturer P/N
A1 Antenna CHIP 2.45 & 5 GHz Antenova A10194
L1 IND, Multilayer Ceramic, 10nH, +/-5%, 300mA, SMD 0402 Johanson Technology L-07C10NJV6ST
L2 IND, Multilayer Ceramic, 1nH, +/-0.3nH, 300mA, SMD 0402 Johanson Technology L-07C1N0SV6T
C2 CAP, CER, 0.2pF, +/-0.1pF, C0G, 50V, SMD 0402 Johanson Technology 500R07S0R2BV4
R1
0 Ω resistor, 0402
Generic -
R2 Do not Assembly - -
J7 Do Not Assembly - -
4.1.2 Antenna characteristics
Parameter Low band High band Unit
Frequency Range 2.4 – 2.5 4.9 – 5.875 GHz
Peak Gain 1.8 4.1 dBi
VSWR < 1.4:1 < 1.8:1 -
Efficiency >75 >60 %
Polarisation Linear -
Radiation pattern Omnidirectional -
Temperature range -40 to +85 °C
Impedance 50
Ω
Dimension
(L x W x H)
10.0 x 10.0 x 0.9 mm