Field file does not add files when there is more than one field

I'm having problems with an upload system. The user can send up to 05 files, for this, I'm doing it this way:

<table border="0">
   <tr class='linhas'>
    <td>      
    <div class="md-group-add-on">  
      <span class="md-add-on-file">
          <button class="btn btn-primary waves-effect waves-light"><i class="fa fa-upload fa-lg"></i> Arquivo</button>
      </span>
      <div class="md-input-file">
          <input type="file" name="Arquivo" class=""/>
          <input type="text" class="md-form-control md-form-file">
          <label class="md-label-file">Escolher Arquivo</label>
      </div>
       </div>
    </td>
    <td  style="padding: 5px"><button type="button" class="removerCampo btn btn-danger" title="Remover linha"><i class="fa fa-minus-square" aria-hidden="true"></i> Remover</button></td>
   </tr>
   <tr><td colspan="3"><button type="button" class="adicionarCampo btn btn-success" title="Adicionar mais arquivos"><i class="fa fa-plus-square" aria-hidden="true"></i> Adicionar mais arquivos</button></td></tr>
</table>

As a result:

ButwhentheuserclicksAddmorefilesinthefieldthathasbeenadded,thefilenamethatwasaddedinthefirstfieldappears,ieitreplicatesthefilefromthefirstfield,butselectthefilefromthecomputerfromthesecondfieldon,remainsthefileofthefirstfield.See:

Jquerylookslikethis:

<scripttype="text/javascript">
$(function () {
  function removeCampo() {
  $(".removerCampo").unbind("click");
  $(".removerCampo").bind("click", function () {
     if($("tr.linhas").length > 1){
    $(this).parent().parent().remove();
     }
  });
  }

  $(".adicionarCampo").click(function () {
    if ($('.linhas').length < 5){
        novoCampo = $("tr.linhas:first").clone();
        novoCampo.find('input[type="file"]').val("");
        novoCampo.insertAfter("tr.linhas:last");
        removeCampo();
     }else{
      $(document).ready(function () {
        $('#erro').modal('show');
      });
     }
  });
});
</script>

Another problem is that if I put:

name="Arquivo"

It can still add in the first field, but if I rename it to:

name="Arquivo[]"

I can not add more files in any field, not the first.