2450 MHz Small SMD Chi
Antenna P/N 2450AT42B100
Ground Clearance Requirements Minimized. This antenna was designed for corner or end-mounting
Detail Specification: 10/08/13
Page 1 of 4
In mm
No.
L
±±
1
W
±±
2
L1
±±
3
W1
±±
4
T
a
±±
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821
Ver 2.1
2013 Johanson Technology, Inc. All Rights Reserved
Note: It is recommended that the designer leave available slots for a "pi" (or shunt-series-
shunt) network. The antenna matching network values here are used when antenna is
mounted on Johanson's evaluation board. The matching values on clinet's PCB will be
different, go to: johansontechnology.com/tuning and see how to obtain the new values. If
you need further help, contact our RF Applications Eng Team at:
www.johansontechnology.com/en/ask-a-technical-question.html
We peform layout review
as well as antenna
tuning and
characterization services.
Go to page 2 for details.
General Specifications
-40 to +85°C
2W max. (CW)
2,000
50
9.5 dB min.
-1.5 dBi typ. (XZ-V)
0 dBi typ. (XZ-V)
2400 - 2500 Mhz
0.020 0.012 0.50 0.30
0.079 2.00+.004/-.008 +0.1/-0.2
0.008 0.20
0.50
0.008 0.20
2.60 0.20
+5 ~ +35 °C,Humidity 45~75%RH
-40 to +85°C
"High Frequency Ceramic Solutions"
0.20
2.00
0.020
0.102 0.008
0.008
0.197
0.079
5.00
NC
NC
NC
2450AT42B100
Mounting Considerations
Part Number
Frequency Range
Peak Gain
Average Gain
Return Loss
Impedance
Reel Quanity
Power Capacity
Function
Mechanical Dimensions Terminal Configuration
Feeding Point
Operating Temperature
Recommended Storage Conditio
Storage Period
a
T
W1
L1
W
L
2.8 10.71
1
0.7
1.0
3
0.7
0.8
2
0.7
1
22
8
3.8
6
3.3 nH
1.5 nH
Linewidth should bedesignedtomatch50Ω characteristicimpedance(Grounded Co‐PlanarWaveguide),depending on PCBmaterial
andthickness.(Thematchingcircuitandcomponent valueswillbedifferent on clients PCBlayout, s enotesbelowandgotopage2for
details ).
Top View
Bottom View
Side View
Yellow
area=Ground/Metal
Clearance.
The "0.82mm" dimmension is
a min. requirement, if the
designer can make this larger,
the better radiation and gain
will occur (i.e. 2.0 or 4.0mm)
RF Via"stich" around
antenna clearance
and feed trace for
best radiation
