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Rev 11-11-08
ANT-315-SP DATA SHEET
Product Dimensions
Description
Features
Electrical Specifications
Ordering Information
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 products 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.
315-SP1
11 SWR 1.558
315-SP1
0.54
(13.7)
0.20
(5.1)
0.06
(1.5)
1.10
(27.94)
No ground plane or traces
under the antenna
Ground plane on bottom
layer for counterpoise
50-ohm microstrip line
Vias to ground plane
1
1
GROUNDED LINE PLANAR ANTENNA
916-SP
PCB pads for the Splatch
0.20
(5.1)
0.10
(2.5)
0.08
(2.0)
Recommended Mounting
Typical VSWR
Antenna Factor   159 Ort Lane  Merlin, OR  97532   www.antennafactor.com
541-956-0931 (phone) 541-471-6251 (fax)
VSWR Graph
"  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
"  Center Freq.    315MHz
"  Bandwidth
5MHz
"  Wavelength
1/4-wave
"  VSWR
<
1.9 typ. at center
"  Impedance
50 ohms
"  Connection
Surface-mount
"  ANT-315-SP (supplied in tubes of 20 pieces)
Recommended Footprint
Electrical specifications and plots measured on 1.50x3.30reference ground plane
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