User's Guide

MT7921K
Install User Guideline: Part-I
Confidential B
MediaTek Confidential
© 2020 - 2021 MediaTek Inc.
Page 12 of 17
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
3.2 Antenna information
The antennas mentioned below are covered in the certification scope and the HOST can only be used with
the following antennas:
Ant.
Set
RF Chain No.
Brand
Model
Ant. Net
Gain
(dBi)
Freq. Range
(GHz)
Ant.
Type
Connector
Type
Cable
Length
(mm)
Cable Loss (dB)
Excluding
Cable Loss
Ant. Gain
(dBi)
1
Chain0
Cortec
AN2450-4902BRS
2.42
3.87
2.4~2.4835
5.15~5.85
Dipole
R-SMA
150
2.4~2.4835GHz : 0.5
5.15~5.85GHz : 0.8
2.92
4.67
Chain1
Cortec
AN2450-4902BRS
2.42
3.87
2.4~2.4835
5.15~5.85
Dipole
R-SMA
150
2.4~2.4835GHz : 0.5
5.15~5.85GHz : 0.8
2.92
4.67
2
Chain0
PSA
RFMTA340718EML
B302
3.18
4.92
2.4~2.4835
5.15~5.85
PIFA
i-pex(MHF)
200
included cable loss
-
Chain1
PSA
RFMTA340718EML
B302
3.18
4.92
2.4~2.4835
5.15~5.85
PIFA
i-pex(MHF)
200
included cable loss
-
3
Chain0
PSA
RFMTA311020EMM
B301
1.71
4.82
3.31
2.4~2.4835
5.15~5.85
5.92~7.125
PIFA
i-pex(MHF)
200
-
-
Chain1
PSA
RFMTA311020EMM
B301
1.71
4.82
3.31
2.4~2.4835
5.15~5.85
5.92~7.125
PIFA
i-pex(MHF)
200
-
-
4
Chain0
PSA
RFMTA311020EMM
B301_V02
1.71
4.82
4.76
4.29
4.61
4.09
2.4~2.4835
5.15~5.85
5.925~6.425
6.425~6.525
6.525~6.875
6.875~7.125
PIFA
i-pex(MHF)
200
-
-
Chain1
PSA
RFMTA311020EMM
B301_V02
1.71
4.82
4.76
4.29
4.61
4.09
2.4~2.4835
5.15~5.85
5.925~6.425
6.425~6.525
6.525~6.875
6.875~7.125
PIFA
i-pex(MHF)
200
-
-
Please note that the above antennas are custom made for MediaTek MT7921K module and are not listed in
Walsin Technology Corp standard catalogs. For the purchase of these antennas, please contact Walsin
Technology as listed below directly. Only the above antennas are tested for compliance with the FCC rules,
and all other antennas (even same type with lower gain) will require a re-assessment to be used with this
module.
Contact info for above certified antennas:
Company/Dept.: Walsin Technology Corp./ Antenna Business Dept.
Contact window: Andrew Lin
Tel: [phone] # 8172
Cell phone: [phone]
Email address: [e-mail]
URL link: http://www.passivecomponent.com/zh-hant/products/antenna/