“…Therefore, several publications have been presented through recent years regarding this issue, thus emphasizing the importance of multi-standard receivers. However, the majority of these publications focused on low-medium bandwidth standards [9][10][11][12][13]15,17,19,21,23,24], supporting essentially GSM and WCDMA standards. Recently, new converters were introduced in order to improve the bandwidth and therefore to be able to cope with WLAN requirements [14,16,18,20,22,[25][26][27].…”