Get-view excluding a cluster?

I've searched around for this but am not really finding anything this specific. I'm running a nightly export similar to this:

$TestWinVMList = @()

# Get all VMs | Keep only PoweredOn | Iterate over all of the results.
Get-View –viewtype VirtualMachine | Foreach-object {

# Skip if powered off
if ($_.Summary.Runtime.Powerstate -eq "poweredOff") {
     return
}

If ($_.Config.GuestFullName.startswith("Microsoft")) {
     $obj = "" | Select u_name, u_hostname, u_disk, u_ram, u_ip_address, u_mac_address, u_os     $obj.u_name = $_.Name     $obj.u_hostname = $_.Guest.HostName          If (!$obj.u_hostname) {$obj.u_hostname = "$($obj.u_name)" + ".phci.org"}     $diskField = $null     $_.Guest.disk | Sort DiskPath | foreach-object {          $diskField += "$($_.DiskPath) $([math]::Round($_.Capacity / 1073741824)) GB "     }     $obj.u_disk = $diskField     $obj.u_ram = [string]([int] $_.Summary.Config.MemorySizeMB / 1024) + " GB"     $obj.u_ip_address = $_.Guest.Net.IPAddress -join ", "     $obj.u_mac_address = $_.guest.net.MacAddress -join ", "     $obj.u_os = $_.Config.GuestFullName

$TestWinVMList += $obj
}

Let's say there's 3 clusters in a vCenter and I don't want to pull data from one of them.  How do I tell Get-View to exclude all VMs in a specific cluster?