TOPICS LC EMI FILTER THERMISTOR CHIP FUSE
SURGE ABSORBERS VARISTOR ANTENNAS CHIP RESISTORS
GHz band Technology Packaging
Consulting



Surface mountable dielectric chip antennas AHD series is a result of harmonizing our long experience in ceramic material & process technologies for high frequency applications together with cutting-edge RF design technologies.
It is very small with low profile, but has a wide range of frequency band.
It is suitable for compact mobile equipment and communication modules.

■ Features

•  Very small and thin, omni-directional antenna.
•  Due to its compact size, suitable for equipment like cellular phone with a limited mounting space.
•  Suitable for card shaped equipment due to its low profile.
•  Wide frequency band allows a big margin to cover the required range even in case of center frequency shift with mounting condition and other environmental factors.

■ Applications

•  Wireless LAN, Bluetooth, Zig Bee etc.
•  PHS, DECT
•  GPS

■ Part number system

AHD
1403
2
4
4
ST01
T
Series
Size
Option
1GHz
100MHz
10MHz
Control Code
Packing form
     
 
   
Center Frequency
 
T: Taping
B: Bulk

■ Dimensions


■ Characteristics (Reference)

Part Number Bandwidth in V.S.W.R. ≤3 Peak Gain

Average Gain
AHD 1403-244ST01 230MHz -0.5dBd -3.8dBd
AHD 1403-191ST01 130MHz -1.3dBd -4.7dBd
AHD 1103-244ST01 200MHz -1.0dBd -4.8dBd

■ Characteristic Test Board

(AHD1403-244ST01)

(AHD1103-244ST01)



■ Radiation Pattern
(Z-X plane)

 (Y-Z plane)

 (X-Y plane)


■ Characteristics of AHD1103-244ST01

■ Characteristics of AHD1403-244ST01

■ Characteristics of AHD1403-191ST01


■ Series of center Frequencies

In case of surface mount antennas, the center frequency is dependent on the PCB size or other surrounding components and materials, and therefore can be different from what is measured with our standard test board. For the AHD series , we have therefore prepared series of items having different center frequencies with a certain frequency step, in order to cancel the above mentioned frequency shift by the environmental factors.
So with our AHD series, you can easily and quickly find the most suitable antenna for your own mounting conditions.
* These characteristics are not guaranteed ones ,but typical ones.