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PDF IA4420 Data sheet ( Hoja de datos )
| Número de pieza | IA4420 | |
| Descripción | ISM Band FSK Transceiver | |
| Fabricantes | Interation | |
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www.DataSheet4U.com
IA ISM-AN6
heet4U.comAntenna Selection Guide for the
SIA4420 ISM Band FSK Transceiver
ata Application Note
.D Version 1.0r - PRELIMINARY
wwwIA ISM-AN6 Rev 1.0r 1205
www.DataSheet4U.com©2005, Integration Associates, Inc.
1 page  
2. Antenna Layouts ................................................................................................................................................................................ 25
915 MHZ BAND .................................................................................................................................................................................. 26
915/868 MHz cross tapped loops:................................................................................................................................................... 26
Fig. 2.3a. 915-868 MHz cross tapped loop antenna: the “small” type. .................................................................................... 26
Fig. 2.3b. 915-868 MHz cross tapped loop antenna, “small” type: top and bottom layer (top view) ..................................... 26
Fig. 2.3c. 915-868 MHz cross tapped loop antenna, “small” type: zoomed antenna RF feeding points on top layer
and DC feeding point on bottom layer......................................................................................................................................... 27
Fig. 2.3d. 915-868 MHz cross tapped loop antenna, “small” type: zoomed picture of printed capacitor top and
bottom (top view) layers. .............................................................................................................................................................. 27
Fig. 2.4a. 915-868 MHz cross tapped loop antenna: the “big” type. ........................................................................................ 28
Fig. 2.4b. 915-868 MHz cross tapped loop antenna, “big” type: top layer and bottom layer (top view)................................. 28
Fig. 2.4c. 915-868 MHz cross tapped loop antenna, “big” type: zoomed antenna RF feeding points on top layer
and DC feeding point on bottom layer......................................................................................................................................... 29
Fig. 2.4d. 915-868 MHz dual band cross tapped loop antenna, “big” type: zoomed picture of printed capacitor top
and bottom (top view) layers........................................................................................................................................................ 29
915MHz BIFA:..................................................................................................................................................................................... 30
Fig. 2.5a. 915 MHz BIFA antenna. Top layer . ............................................................................................................................ 30
Fig. 2.5b. 915 MHz BIFA antenna. Bottom layer (top view) and zoomed antenna RF feeding points on top layer ................ 30
Fig. 2.5c. 915 MHz BIFA antenna. Zoomed picture of antenna DC feeding on the bottom (top view) layer........................... 31
868 MHz BAND................................................................................................................................................................................... 32
915/868 MHz cross tapped loops:................................................................................................................................................... 32
868MHz BIFA:..................................................................................................................................................................................... 32
Fig. 2.6a. 868 MHz BIFA antenna. Top layer . ............................................................................................................................ 32
Fig. 2.6b. 868 MHz BIFA antenna. Bottom layer (top view) and zoomed antenna RF feeding points on top layer ................ 32
Fig. 2.6c. 868 MHz BIFA antenna. Zoomed picture of antenna DC feeding on the bottom (top view) layer........................... 33
434 MHz BAND................................................................................................................................................................................... 34
434MHz cross tapped loop: .............................................................................................................................................................. 34
Fig. 2.7a. 434 MHz cross tapped loop antenna. ........................................................................................................................ 34
Fig. 2.7b. 434 MHz cross tapped loop antenna. Top and bottom layer (top view) . ................................................................. 34
Fig. 2.7c. 434 MHz cross tapped loop antenna. Zoomed picture of antenna RF feeding points on the top layer and
DC feeding on bottom layer ......................................................................................................................................................... 35
Fig. 2.7d. 434 MHz cross tapped loop antenna. Zoomed picture of printed capacitor top and bottom (top view)
layers . ........................................................................................................................................................................................... 35
Appendix.................................................................................................................................................................................................. 36
APPENDIX A......................................................................................................................................................................................... 36
EIRP and sensitivity for IA4420 with alternate antennas........................................................................................................... 36
APPENDIX B ........................................................................................................................................................................................ 38
Fig B.1. .......................................................................................................................................................................................... 38
Fig B.2. .......................................................................................................................................................................................... 38
4
5 Page 
EUROPEAN ETSI REGULATIONS: 868MHZ AND 434MHZ (CONTINUED)
434 MHz E.U. band
RX Tapped loop (see Figs. 2.7)
TX Tapped Loop
(see Figs. 2.7)
9600 bps
272
57470 bps
192
Table 1.4 Free space range [m] in the 434 MHz European unlicensed band (10-2 BER). The real indoor or outdoor
ranges can be calculated from this data using the calculation method of Appendix E of the IA-ISM-AN1 document.
10
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