データシートサーチシステム |
|
GS-BT2416C2_0709 データシート(PDF) 9 Page - STMicroelectronics |
|
GS-BT2416C2_0709 データシート(HTML) 9 Page - STMicroelectronics |
9 / 32 page GS-BT2416C2.AT1 Application information 9/32 5.1 Antenna reference RF output pin must be connected to an antenna which could be: ● Antenna directly printed on the pcb (Figure 3) ● Integrated antenna as, for example, Antenova 30-30-A5839-01 , Murata ANCV12G44SAA127, Pulse W3008 , Yageo CAN4311153002451K. (Figure 4) ● External antenna connected by means a SMA connector (Figure 5) ● Despite of the type of antenna chosen, the connection between the RF out pin and the antenna must be executed in such a way that the connection trace must be matched to have characteristic impedance (Z0) of 50 ohm to get the maximum power transfer . ● Matching for 50ohm is depending on the various factors , elements to be taken into consideration are: – Type of material, i.e. FR4 – The electrical characteristics of the material ,i.e. the εr , electric constant at 2.4GHz – Mechanical dimensions of the pcb and traces ,i.e. pcb thickness , trace/ reference ground thickness, trace width , trace thickness – Just to give an example , using a 1mm thick FR4 board , with an εr = 4.3 at 2.4GHz , with Cu thickness of 41 µm, the resulted width of 50ohm strip-line is 1.9 mm ( Microstrip type calculation). Figure 6. Parameters for trace matching Tools for calculating the characteristic impedance, based on the physical and mechanical characteristics of the pcb , can be easily found on the web. Figure 3. Antenna on PCB Figure 4. Antenna examples Figure 5. SMA connector for external antenna εr (Dielectric constant) PCB thickness Trace width Reference ground Trace thickness |
同様の部品番号 - GS-BT2416C2_0709 |
|
同様の説明 - GS-BT2416C2_0709 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |