W3127_14 Datasheet, PDF (2/4 Pages) Pulse A Technitrol Company – ISM 433MHz Helical Antenna

W3127 Datasheet version 1.2. ISM 433MHz Helical Antenna. (5/14).
ISM 433MHz Helical Antenna
Ground cleared under antenna, clearance area 8.50x40.00 mm. Pulse Part Number: W3127
Terminal Configuration
PWB Layout
Feed contact
Tuning component
(fine tuning)
Tuning component
(raw tuning)
Feed contact
Matching component
Tuning component
(fine tuning)
Tuning component
(raw tuning)
Matching component
Ground Clearance Area (8.50 x 40.00 mm)
all metallization should be removed from
all PWB layers
Feed line 50 Ω
Ground Clearance Area (8.50 x 40.00 mm)
all metallization should be removed from
all PWB layers _{Ground via hole}
Feed line 50 Ω
Ground via hole
40 mm
40 mm
Terminal Configuration and Antenna Dimensions
4.00
Helix
Helix
4.00
ø 5.00
35.35
1
2
Antenna Features
1
No. Terminal
Name
1
Feed
terminal
2 Support
35.35
2
Terminal
Dimensions
Wire diameter
0.8mm
Diameter 2.5mm,
length 2.6mm
ø _2.50
ø _2.50
4.15
Scale 3:1
Scale 3:1
ø _7.00
ø 5.00
ø _2.50
ø _7.00
ø _2.50
25.00
Matching circuit needs to placed on PCB close to antenna feed terminal.
Matching component values depend on device construction; s₄i_.z₁e₅, surrounding mechan₂ic₅s_.0, m₀ aterials etc..
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: [phone]
Fax: [phone]
www.pulseeng.com/antennas
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