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

直接射频采样技术已被提议作为适用于频率灵活且兼容多种标准的接收器的解决方案，同时仅需单一射频前端。然而，在存在带外和带内干扰的情况下，对其鲁棒性的担忧依然存在。可调谐滤波器天线提供了一种解决方案，将滤波功能融入天线空间，同时提供对无用信号的抑制。本文提出了一种包含可重构频率选择表面的滤波器天线，旨在提供在1.44至1.95 GHz之间的可调谐滤波功能。该滤波器天线被表征为天线与滤波器，表现出在主波束宽度内至少18 dB的抑制。随后，其在直接射频采样接收器中得以实现，并在受到5G NR兼容的干扰信号作用下，证明了其对干扰信号的足够抑制，不会导致接收到的错误矢量幅度（EVM）和块错误率（BLER）的下降。带内干扰器的性能也得到了表征，显示EVM和BLER的最大衰减不超过3 dB。