## 3 Conclusions
_Electronics_**2022**, _11_, 1645; [[https://doi.org/10.3390/electronics11101645](https://doi.org/10.3390/electronics11101645)]([https://doi.org/10.3390/electronics11101645](https://doi.org/10.3390/electronics11101645)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON] A Novel Meander Line Metamaterial Absorber Operating at 24 GHz and 28 GHz for the 5G Applications. _Sensors_**2022**, _22_, 3764; [[https://doi.org/10.3390/s22103764](https://doi.org/10.3390/s22103764)]([https://doi.org/10.3390/s22103764](https://doi.org/10.3390/s22103764)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON] Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array. _Sensors_**2022**, _22_, 3089; [[https://doi.org/10.3390/s22083089](https://doi.org/10.3390/s22083089)]([https://doi.org/10.3390/s22083089](https://doi.org/10.3390/s22083089)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Design of a Low-Profile Wideband Magnetoelectric Dipole Antenna with Reduced Gain Drop. _Electronics_**2022**, _11_, 1156; [[https://doi.org/10.3390/electronics11071156](https://doi.org/10.3390/electronics11071156)]([https://doi.org/10.3390/electronics11071156](https://doi.org/10.3390/electronics11071156)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON] Wideband Filtering Slot Antenna Design with Stable Gain Using Characteristic Mode Analysis. _Sensors_**2022**, _22_, 2780; [[https://doi.org/10.3390/s22072780](https://doi.org/10.3390/s22072780)]([https://doi.org/10.3390/s22072780](https://doi.org/10.3390/s22072780)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] A Conformal Frequency Reconfigurable Antenna with Multiband and Wideband Characteristics. _Sensors_**2022**, _22_, 2601; [[https://doi.org/10.3390/s22072601](https://doi.org/10.3390/s22072601)]([https://doi.org/10.3390/s22072601](https://doi.org/10.3390/s22072601)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] A Wideband Circularly Polarized Magnetoelectric Dipole Antenna for 5G Millimeter-Wave Communications. _Sensors_**2022**, _22_, 2338; [[https://doi.org/10.3390/s22062338](https://doi.org/10.3390/s22062338)]([https://doi.org/10.3390/s22062338](https://doi.org/10.3390/s22062338)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Hardware Efficient Massive MIMO Systems with Optimal Antenna Selection. _Sensors_**2022**, _22_, 1743; [[https://doi.org/10.3390/s22051743](https://doi.org/10.3390/s22051743)]([https://doi.org/10.3390/s22051743](https://doi.org/10.3390/s22051743)). * [PERSON] (2022) [PERSON]; [PERSON]; [PERSON] A Study on Conformal Metasurface Influences on Passive Beam Steering. _Electronics_**2022**, _11_, 674; [[https://doi.org/10.3390/electronics11050674](https://doi.org/10.3390/electronics11050674)]([https://doi.org/10.3390/electronics11050674](https://doi.org/10.3390/electronics11050674)). * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Research on Ultra-Low-Frequency Communication Based on the Rotating Shutter Antenna. _Electronics_**2022**, _11_, 596; [[https://doi.org/10.3390/electronics11040596](https://doi.org/10.3390/electronics11040596)]([https://doi.org/10.3390/electronics11040596](https://doi.org/10.3390/electronics11040596)). * Honda (2022) [PERSON] Over-the-Air Testing of a Massive MIMO Antenna with a Full-Rank Channel Matrix. _Sensors_**2022**, _22_, 1240; [[https://doi.org/10.3390/s22031240](https://doi.org/10.3390/s22031240)]([https://doi.org/10.3390/s22031240](https://doi.org/10.3390/s22031240)). * [PERSON] (2022) [PERSON] [PERSON] A Planar Four-Element UWB Antenna Array with Stripline Feeding Network. _Electronics_**2022**, _11_, 469; [[https://doi.org/10.3390/electronics11030469](https://doi.org/10.3390/electronics11030469)]([https://doi.org/10.3390/electronics11030469](https://doi.org/10.3390/electronics11030469)).