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Chengdu Ebyte Electronic Technology Co., Ltd

E21-400G37 User Manual

Copyright ©2012–2019, hengdu Ebyte Electronic Technology Co., Ltd

11

Chapter 9 Antenna Guide

9.1 Antenna recommendation

Antennas play an important role in the communication process, and poor quality antennas often have a great impact on

the communication system. Therefore, we recommend some antennas to be used as antennas supporting our wireless
modules with excellent performance and reasonable price.

Model

Type

Frequency

Gain

Size

Feeder

Interface

Feature

MHz

dBi

cm

cm

TX433-XP-200

Sucker

400~470

4

1.9

200

SMA-J

Ultra short straight,

omnidirectional antenna

TX433-JKD-20

Rubber

400~470

4

2.0

/

SMA-J

Bendable rubber rod,

omnidirectional antenna

TX868-XPL-100

Sucker

850~900

3.5

2.9

100

SMA-J

Small sucker antenna,

cost-effective

TX868-JKD-20

Rubber

850~900

3.0

2.0

/

SMA-J

Bendable rubber rod,

omnidirectional antenna

TX915-XPL-100

Sucker

900~931

3.5

2.6

100

SMA-J

Small sucker antenna,

cost-effective

TX868-JKS-20

Rubber

900~931

3.0

2.1

/

SMA-J

Bendable rubber rod,

omnidirectional antenna

Содержание E21-400G37S

Страница 1: ...E21 400G37S User Manual ISM band 433 470MHz patch type PA LNA amplifier module...

Страница 2: ...c curve 4 Chapter 3 Mechanical Dimensions and Pin Definitions 6 Chapter 4 Basic Operation 7 4 1 Hardware design 7 4 2 Software Edit 8 Chapter 5 Basic Application 8 5 1 Basic circuit 8 Chapter 6 FAQ 9...

Страница 3: ...el or otherwise The test data obtained in this paper are all from the test of the Yibaite laboratory and the actual results may be slightly different It is hereby declared that all trade names tradema...

Страница 4: ...for receiving and transmitting control switching SOP chip design mode ultra small size very easy to embed the entire scheme is designed according to industrial grade and the back is large area of bar...

Страница 5: ...4 7 5 7 6 7 5V is recommended to ensure the best performance Operating temperature 40 25 85 Industrial grade design Operating frequency band MHz 410 493 ISM band Power waste Emission current mA 1400...

Страница 6: ...Chengdu Ebyte Electronic Technology Co Ltd E21 400G37 User Manual Copyright 2012 2019 hengdu Ebyte Electronic Technology Co Ltd 5 2 3 1 Power 2 3 2 Smith and SWR...

Страница 7: ...ransmission mode effective at high level support 3 3V 5V level 8 RXEN Input Receive mode enable active at high level support 3 3V 5V level 9 GND Ground wire connected to reference ground 10 PIN Input...

Страница 8: ...dule If it is really necessary to pass under the module suppose that the module is welded on the Top Layer and the top layer of the module contact part is paved with copper all are paved with copper a...

Страница 9: ...and low level select mode support 3 3 5V level L L Sleep mode When the module enters the sleep mode PA and LNA do not work L H Receiving mode When the module enters the receiving mode PA does not work...

Страница 10: ...the module is poor or the quality of the antenna itself is poor 6 2 Modules are easily damaged Please check the power supply to ensure that it is between the recommended power supply voltages If it ex...

Страница 11: ...90 sec Peak temperature Tp Peak temperature 220 235 230 250 Aveage ramp down rate Tp to Tsmax Average falling rate 6 second max 6 second max Time 25 to peak temperature Time from 25 to peak temperatur...

Страница 12: ...cellent performance and reasonable price Model Type Frequency Gain Size Feeder Interface Feature MHz dBi cm cm TX433 XP 200 Sucker 400 470 4 1 9 200 SMA J Ultra short straight omnidirectional antenna...

Страница 13: ...ethod Revision History Version Revision date Description Maintainer 1 0 2021 8 31 First published LJ 1 1 2022 10 12 Parameter confirmation Yan About us Hotline 4000 330 990 Telephone 028 61399028 Supp...

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