[1] SEVSKIY S,WIESBECK W. Ultra-broadband omnidirectional printed dipole arrays[C]// Antenna and Propagation Society International Symposium. [S.l.]:IEEE, 2005:545-548.

[2] LI Jian,HUANG Yongjun,WEN Guangjun. A six-octave wideband and low profile log-period monopole end-fire antenna[C]// 2018 IEEE International Symposium on Antennas and Propagation & USNC/USRI National Radio Science Meeting. San Diego,CA,USA:American Institute of Physics, 2018:843-844.

[3] HINOSTROZA I,GUINVARC’H R,HAUPT R. Low frequency bandwidth in connected spiral arrays[C]// 2016 IEEE International Symposium on Phased Array Systems and Technology(PAST). Waltham,MA,USA:IEEE, 2016:1-3.

[4] TZANIDIS I,SERTEL K,VOLAKIS J L. Interwoven Spiral Array(ISPA) with a 10:1 bandwidth on a ground plane[J]. IEEE Antenna and Wireless Propagation Letters, 2011(10):115-118.

[5] SUH S Y,STUTZMAN W L,DAVIS W A. A new ultrawideband printed monopole antenna:the Planar Inverted Cone Antenna (PICA)[J]. IEEE Transactions on Antennas and Propagation, 2004,52(5):1361-1364.

[6] PARSCHE F E. An electrically small loop antenna with usefully isotropic radiation and common mode feed[C]// 2016 International Workshop on Antenna Technology(IWAT). Cocoa Beach,FL,USA:IEEE, 2016:95-98.

[7] CHEN L Y,WONG K L. Small-size half-loop frame antenna integrated with a USB connector and having a narrow ground clearance for the LTE metal-framed smartphone[C]// 2016 International Symposium on Antennas and Propagation. Okinawa, Japan:IEEE, 2016:718-719.

[8] LIU Haitao,CHENG Yuhua,YAN Michael. Electrically small loop antenna standing on compact ground in wireless sensor package[J]. IEEE Antennas and Wireless Propagation Letters, 2016(15):76-79.

[9] CHO Y J,SHIN Y S,PARK S O. Internal PIFA for 2.4/5 GHz WLAN applications[J]. Electronics Letters, 2006,42(1):8-13.

[10] YURDUSEVEN O,SMITH D. A solar cell stacked multi-slot quad-band PIFA for GSM,WLAN and WiMAX networks[J]. IEEE Microwave and Wireless Components Letters, 2013,23(6):285-287.

[11] YAN S,VOLSKIY V,VANDENBOSCH G A E. Compact dual-band textile PIFA for 433 MHz/2.4 GHz ISM bands[J]. IEEE Antennas and Wireless Propagation Letters, 2017(16):2436-2439.

[12] BAO Z D,NIE Z P,ZONG X Z. A broadband dual-polarization antenna element for wireless communication base station[C]// 2012 IEEE Conference on Antennas and Propagation. Singapore:IEEE, 2012:144-146.

[13] 吴锐.小型多模宽带基站天线研究[D].广州:华南理工大学, 2018. (WU Rui. Researches on miniaturized multi -mode broadband base station antennas[D]. Guangzhou,China:South China University of Technology, 2018.)

[14] SUH S Y,STUTZMAN W L,WALTHO A,et al. A novel low-profile,dual-polarization,multi-band base-station antenna element －the four point antenna[C]// IEEE 60th Vehicular Technology Conference. [S.l.]:IEEE, 2004:225-229.

[15] LIU Ying,YI Hao,WANG Fuwei,et al. A novel miniaturized broadband dual-polarized dipole antenna for base station[J]. IEEE Antenna and Wireless Propagation Letters, 2013(12):1335-1338.