Since leaky-wave antennas(LWAs)have the advantages of high directivity,low loss and structural simplicity,LWAs are very suitable for designing millimeter-wave(mmW)antennas.The purpose of this paper is to review the la...Since leaky-wave antennas(LWAs)have the advantages of high directivity,low loss and structural simplicity,LWAs are very suitable for designing millimeter-wave(mmW)antennas.The purpose of this paper is to review the latest research progress of LWAs for 5G/B5G mobile communication systems.Firstly,the conventional classification and design methods of LWAs are introduced and the effects of the phase constant and attenuation constant on the radiation characteristics are discussed.Then two types of new LWAs for 5G/B5G mobile communication systems including broadband fixed-beam LWAs and frequencyfixed beam-scanning LWAs are summarized.Finally,the challenges and future research directions of LWAs for 5G/B5G mobile communication systems are presented.展开更多
The impacts of rain on millimeter wave(mmW)terrestrial links,which are inevitably affected by ground-objects-induced multipath propagation,are presented based on the signal time series data measured at 35 GHz.We analy...The impacts of rain on millimeter wave(mmW)terrestrial links,which are inevitably affected by ground-objects-induced multipath propagation,are presented based on the signal time series data measured at 35 GHz.We analyze the coupled influence mechanism of rain-induced and ground-objects-induced multipath propagation on mmW terrestrial links.It can be deduced that the rain-induced impacts on millimeter wave terrestrial links cannot be neglected.The results given in this paper are significant for developing 5G millimeter wave terrestrial mobile communication links.展开更多
基金the National Natural Science Foundation of China(NSFC)under Grants 62071306 and 61801299in part by the Mobil⁃ity Program for Taiwan Young Scientists under Grant RW2019TW001and in part by Shenzhen Science and Technology Program under Grants GJHZ20180418190529516 and JSGG20180507183215520.
文摘Since leaky-wave antennas(LWAs)have the advantages of high directivity,low loss and structural simplicity,LWAs are very suitable for designing millimeter-wave(mmW)antennas.The purpose of this paper is to review the latest research progress of LWAs for 5G/B5G mobile communication systems.Firstly,the conventional classification and design methods of LWAs are introduced and the effects of the phase constant and attenuation constant on the radiation characteristics are discussed.Then two types of new LWAs for 5G/B5G mobile communication systems including broadband fixed-beam LWAs and frequencyfixed beam-scanning LWAs are summarized.Finally,the challenges and future research directions of LWAs for 5G/B5G mobile communication systems are presented.
基金This work was supported in part by ZTE Corporation Program under Grant No.2017ZTE01-01-06.
文摘The impacts of rain on millimeter wave(mmW)terrestrial links,which are inevitably affected by ground-objects-induced multipath propagation,are presented based on the signal time series data measured at 35 GHz.We analyze the coupled influence mechanism of rain-induced and ground-objects-induced multipath propagation on mmW terrestrial links.It can be deduced that the rain-induced impacts on millimeter wave terrestrial links cannot be neglected.The results given in this paper are significant for developing 5G millimeter wave terrestrial mobile communication links.
