Powershell Get-AdObejct with -filter option containing variable

When i execute this powershell command line i have some result :
Get-ADObject -Properties mail, proxyAddresses -Filter {mail -like "*pierre.w*" -or proxyAddresses -like "*pierre.w*"} |ft

but when i execute those lines i've got a error :
$filtre="{mail -like ""*$emailportion*"" -or proxyAddresses -like ""*$emailportion*""}"
Get-ADObject -Properties mail, proxyAddresses -Filter $filtre

Get-ADObject : Error parsing query: '{mail -like "*pierre.w*" -or proxyAddresses -like "*pierre.w*"}' Error Message: 'syntax error' at position: '1'.
At line:1 char:1
+ Get-ADObject -Properties mail, proxyAddresses -Filter $filtre
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ParserError: (:) [Get-ADObject], ADFilterParsingException
    + FullyQualifiedErrorId : ActiveDirectoryCmdlet:Microsoft.ActiveDirectory.Management.ADFilterParsingException,Microsoft.ActiveDirectory.Management.Commands.GetADObject

The variable $filtre contain : {mail -like "*pierre.w*" -or proxyAddresses -like "*pierre.w*"}

The help on get-ADObject show the -filter option as a string
    Get-ADObject [-AuthType {Negotiate | Basic}] [-Credential <PSCredential>] [-IncludeDeletedObjects] [-Properties <String[]>] [-ResultPageSize <Int32>] [-ResultSetSize <Int32>] [-SearchBase <String>]
    [-SearchScope {Base | OneLevel | Subtree}] [-Server <String>] -Filter <String> [<CommonParameters>]
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Try it like this:
$filtre = "(mail -like '*$emailportion*') -or (proxyAddresses -like '*$emailportion*')"
Get-ADObject -Properties mail, proxyAddresses -Filter $filtre

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WurthAdminAuthor Commented:
Thank you it works well.

Best Regard
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