1905AT45A0050001E

**==> picture [448 x 280] intentionally omitted <==**

**----- Start of picture text -----**<br>
"High Frequency Ceramic Solutions"<br>ee<br>1.905 GHz Antenna P/N 1905AT45A0050<br>Detail Specification:   07/29/2010 Page 1 of 3<br>PC Recommended application: DECT<br>General Specifications<br>Part Number 1905AT45A0050 Input Power 2W max.<br>Frequency Range 1880 - 1930MHz Impedance 50 Ω<br>Peak Gain 0.5 dBi typ (XZ-Total) Reel Quanity 1,000<br>Average Gain -1.1 dBi typ. (XZ-Total) Operating Temperature -40 to +85°C<br>Return Loss 9.5 dB min.  +5 to +35°C, Humidity:<br>Storage Temperature<br>45-75%RH, 12 mos. Max<br>Packaging Bulk Suffix = S Eg. 1905AT45A0050S Terminal Configuration<br>P/N Style T & R Suffix = E Eg. 1905AT45A0050E No. Function<br>Suffix Termination 100% Tin Suffix = None Eg. 1905AT45A0050(E or S) 1 Feeding Point<br>Style Tin / Lead Please consult Factory 2 NC<br>Mechanical Dimensions 1 2<br>**----- End of picture text -----**<br>


**In mm L** 0.374 ± 0.008 9.50 ± 0.20 W **W** 0.079 ± 0.008 2.00 ± 0.20 a **T** 0.047 +.004/-.008 1.20 +0.1/-0.2 L T **a** 0.020 ± 0.012 0.50 ± 0.30 ~~—~~ — 

## **Mounting Considerations** 

Mount these devices with brown mark facing up. Units: mm 

* Line width should be designed to provide 50 Ω impedance, depending on PCB material and thickness. 

**==> picture [211 x 168] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.7nH GND 7<br>* 1.3<br>Fn.<br>3.3nH i<br>8.5<br>GND 1.3<br>2.0<br>**----- End of picture text -----**<br>


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 2010 Johanson Technology, Inc.  All Rights Reserved 

**==> picture [317 x 18] intentionally omitted <==**

**----- Start of picture text -----**<br>
"High Frequency Ceramic Solutions"<br>**----- End of picture text -----**<br>


**==> picture [442 x 372] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.905 GHz Antenna P/N 1905AT45A0050<br>Detail Specification:   07/29/2010 Page 2 of 3<br>Typical Electrical Characteristics (T=25 [o] C)<br>50 Ω  Feed Line<br>) ) Test Board ) ) 40mm 7mm<br>) ) ) |<—>}<br>5 O O O O ) O O X) O e O O O O O O O O O<br>:<br>: O |i io<br>5<br>20mm 0 () Oo (JO 90000000<br>Antenna<br>Return Loss Ground 19mm No Ground<br>a) With matching circuits for 1880~1930MHz<br>m1 m2 m3<br>dB(S(1,1))=-10.425} |AB(S(1,1))=-38.587} |dB(S(1,1))=-10.738<br>ft) “o~<br>)<br>**----- End of picture text -----**<br>


- 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 

2010 Johanson Technology, Inc.  All Rights Reserved 

## _**"High Frequency Ceramic Solutions"**_ 

**==> picture [100 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.905 GHz Antenna<br>**----- End of picture text -----**<br>


**==> picture [118 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Detail Specification:   07/29/2010<br>**----- End of picture text -----**<br>


**==> picture [110 x 23] intentionally omitted <==**

**----- Start of picture text -----**<br>
P/N 1905AT45A0050<br>Page 3 of 3<br>**----- End of picture text -----**<br>


**==> picture [286 x 439] intentionally omitted <==**

**----- Start of picture text -----**<br>
Typical Radiation Patterns<br>) ) )<br>) XY cut @1.905GHz<br>) ) ) XY-V/XY-H Z     Vertical    Horizontal<br>)<br>ec Ts 180°<br>X<br>90°<br>a~~ ——_ —__-” 270°<br>Y 0°<br>XY-cut scanning direction<br>XZ-V/XZ-H XZ cut @1.905GHz<br>A Y     Vertical<br>    Horizontal<br>180°<br>90° 6---30--4) X<br>~ yl Z 0° age 270°<br>XZ-cut scanning direction<br>)<br>YZ cut @1.905GHz<br>YZ-V/YZ-H X     Vertical<br>    Horizontal<br>f 180°<br>Y<br>90° (---96--5<br>SL 7 270°<br>Z 0°<br>YZ-cut scanning direction<br>**----- End of picture text -----**<br>


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 2010 Johanson Technology, Inc.  All Rights Reserved