ANT-418-SP DATA SHEET
Product Dimensions
Description
The Splatch uses a grounded-line
technique to achieve outstanding
performance from a tiny surface-
mount element. This unique antenna
is designed for hand- or reflow-
mounting directly to a product’s circuit board. Its low cost makes
it ideal for volume applications. Unlike many compact antennas,
the Splatch exhibits good proximity performance, making it an
appropriate choice for handheld applications such as remote
controls, pagers, and alert devices.
418-SP1
1.10”
(27.94)
418-SP1
0.54”
(13.7)
0.06”
(1.5)
0.20”
(5.1)
Features
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Very low cost
Ultra-compact package
Direct PCB attachment
Ideal for concealed / internal mounting
Perfect for compact portable devices
Suitable for hand- or reflow-assembly
Resistant to proximity effects
Recommended Footprint
0.20”
(5.1)
0.10”
(2.5)
0.08”
(2.0)
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Electrical Specifications
Center Freq.
Bandwidth
Wavelength
VSWR
Impedance
Connection
418MHz
7MHz
1/4-wave
<1.9 typ. at center
50 ohms
Surface-mount
Electrical specifications and plots measured on 1.50” x 3.30” reference ground plane
Ordering Information
•
ANT-418-SP (supplied in tubes of 20 pieces)
Recommended Mounting
VSWR Graph
S11 SWR
1.090
916-SP
No ground plane or traces
under the antenna
PCB pads for the Splatch
Vias to ground plane
Ground plane on bottom
layer for counterpoise
50-ohm microstrip line
1
1
GROUNDED LINE PLANAR ANTENNA
CENTER 418.000MHz
SPAN
75.000MHz
Typical VSWR
Antenna Factor
159 Ort Lane Merlin, OR 97532
www.antennafactor.com
541-956-0931 (phone) 541-471-6251 (fax)
Rev 11-11-08
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