A system?level performance evaluation of a reconfigurable filtenna in the presence of in? and out?of?band blockers

Direct RF sampling has been suggested as a solution for receivers that are flexible in frequency and across standards, while utilising only single radio front-end. However there concerns about their robustness the presence of out-of-band in-band blockers. Tunable filtennas offer to this, incorporating filtering into antenna space providing rejection unwanted signals. This paper presents filtenna containing reconfigurable selective surfaces provide tunable between 1.44 1.95 GHz. The is characterised an filter, showing minimum 18 dB principle beamwidths. It then implemented direct receiver shown sufficient blockers cause no degradation received error vector magnitude (EVM) block rate (BLER) LTE signals when subject 5G NR-compliant blocking blocker performance also characterised, at most 3 EVM BLER.