With the increasing popularity of items containing radio frequency transmitting antennas such as mobile phones, the specific absorption rate (SAR) must be considered in the design process. The size of this indicator can measure that the RF transmitter will not cause harm to human body and
{"title":"Measurement and Analysis of System Verification in SAR Measurement","authors":"晋东 李","doi":"10.12677/ja.2023.122003","DOIUrl":"https://doi.org/10.12677/ja.2023.122003","url":null,"abstract":"With the increasing popularity of items containing radio frequency transmitting antennas such as mobile phones, the specific absorption rate (SAR) must be considered in the design process. The size of this indicator can measure that the RF transmitter will not cause harm to human body and","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design of a Circularly Polarized Microstrip Phased Array for 5G Applications","authors":"涛 倪","doi":"10.12677/ja.2023.124006","DOIUrl":"https://doi.org/10.12677/ja.2023.124006","url":null,"abstract":"","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135158861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents a new wideband foldable orbital angular momentum (OAM) reflectarray antenna. The antenna consists of three parts: The first part is the upper linearly polarized grid (LPG), which can transmit one linearly polarized wave through its orthogonal linearly polarized wave at the same time. The second part is the lower dual-polarized OAM reflectarray, which can generate high gain OAM vortex electromagnetic wave. It plays the role of polarization torsion on the linearly polarized wave emitted by the feed-source at the same time, so as to realize the folding performance of the ref-lectarray, which reduces the longitudinal profile of the reflectarray antenna. The third part is the wi-倪涛，陈官韬
{"title":"Wideband Folded Orbital Angular Momentum Reflectarray Antenna","authors":"涛 倪","doi":"10.12677/ja.2023.121002","DOIUrl":"https://doi.org/10.12677/ja.2023.121002","url":null,"abstract":"This paper presents a new wideband foldable orbital angular momentum (OAM) reflectarray antenna. The antenna consists of three parts: The first part is the upper linearly polarized grid (LPG), which can transmit one linearly polarized wave through its orthogonal linearly polarized wave at the same time. The second part is the lower dual-polarized OAM reflectarray, which can generate high gain OAM vortex electromagnetic wave. It plays the role of polarization torsion on the linearly polarized wave emitted by the feed-source at the same time, so as to realize the folding performance of the ref-lectarray, which reduces the longitudinal profile of the reflectarray antenna. The third part is the wi-倪涛，陈官韬","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Microstrip grid array antenna has been widely used because of its simple structure, low cost, high gain, low profile and other advantages. Microstrip comb array is improved according to the transmission characteristics of microstrip grid array antenna, which removes the transmission long side without changing its function. In this paper, a 24 GHz vehicle mounted antenna based on PCB technology is proposed, which has the advantages of high gain, low sidelobe and narrow beam. Firstly, a microstrip comb antenna subarray is designed, and then 10 subarrays are used to form an antenna array. Chebyshev distribution is used to excite each subarray to obtain the low sidelobe level. Finally, the realized gain of the antenna array can reach 28.8 dBi. At the center frequency of 24.125 GHz, the measured sidelobe levels in the E-plane and H-plane are less than − 15 dB.
{"title":"A High Gain 24 GHz Vehicle Antenna","authors":"征伟 尤","doi":"10.12677/ja.2023.121001","DOIUrl":"https://doi.org/10.12677/ja.2023.121001","url":null,"abstract":"Microstrip grid array antenna has been widely used because of its simple structure, low cost, high gain, low profile and other advantages. Microstrip comb array is improved according to the transmission characteristics of microstrip grid array antenna, which removes the transmission long side without changing its function. In this paper, a 24 GHz vehicle mounted antenna based on PCB technology is proposed, which has the advantages of high gain, low sidelobe and narrow beam. Firstly, a microstrip comb antenna subarray is designed, and then 10 subarrays are used to form an antenna array. Chebyshev distribution is used to excite each subarray to obtain the low sidelobe level. Finally, the realized gain of the antenna array can reach 28.8 dBi. At the center frequency of 24.125 GHz, the measured sidelobe levels in the E-plane and H-plane are less than − 15 dB.","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on Key Technologies of High Temperature Resistant Phased Array Antenna","authors":"子卿 崔","doi":"10.12677/ja.2023.124005","DOIUrl":"https://doi.org/10.12677/ja.2023.124005","url":null,"abstract":"","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A design method for Ka band 3 dB directional coupler is proposed in
{"title":"Design on 3 dB Directional Coupler Operating on Ka Band","authors":"国栋 杨","doi":"10.12677/ja.2022.113006","DOIUrl":"https://doi.org/10.12677/ja.2022.113006","url":null,"abstract":"A design method for Ka band 3 dB directional coupler is proposed in","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a novel folded transmitarray antenna based on the polarization grid (PG) is presented. The transmitarray antenna consists of a planar transmission array, a wideband polarization rotation reflection surface (PRRS) and a wideband stacked microstrip patch array as the primary source. First, a simple three-layer double-ring transmitarray element with the PG is designed, which can reflect one linearly polarized (LP) wave while transmit its orthogonal LP wave. Then, a
{"title":"Design of the Wideband Folded Transmitarray Antenna","authors":"官韬 陈","doi":"10.12677/ja.2022.113004","DOIUrl":"https://doi.org/10.12677/ja.2022.113004","url":null,"abstract":"In this paper, a novel folded transmitarray antenna based on the polarization grid (PG) is presented. The transmitarray antenna consists of a planar transmission array, a wideband polarization rotation reflection surface (PRRS) and a wideband stacked microstrip patch array as the primary source. First, a simple three-layer double-ring transmitarray element with the PG is designed, which can reflect one linearly polarized (LP) wave while transmit its orthogonal LP wave. Then, a","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, we propose a method of using the choke structure to improve the transmittance isolation of active multi-beam phased array antenna, which restricts the application of satellite-borne multi-beam phased array antenna, and propose a hybrid integration method of multi-channel chip and compound chip for the high-density integration technology of multi-beam radio frequency channel. The method of combining main and auxiliary heat dissipation surfaces and pre-embedded heat pipe in the side panel is proposed for efficient space-borne thermal control. All the technologies
{"title":"Research on Key Technologies of Satellite-Borne Muti-Beam Phased Array Antenna","authors":"子卿 崔","doi":"10.12677/ja.2022.113007","DOIUrl":"https://doi.org/10.12677/ja.2022.113007","url":null,"abstract":"In this paper, we propose a method of using the choke structure to improve the transmittance isolation of active multi-beam phased array antenna, which restricts the application of satellite-borne multi-beam phased array antenna, and propose a hybrid integration method of multi-channel chip and compound chip for the high-density integration technology of multi-beam radio frequency channel. The method of combining main and auxiliary heat dissipation surfaces and pre-embedded heat pipe in the side panel is proposed for efficient space-borne thermal control. All the technologies","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The long-wave transmitting antenna has a low working frequency and a long corresponding wavelength. The antennas constructed
{"title":"An Optimization of Long-Wave Antenna Ground Network Based on Differential Evolution Algorithm","authors":"军 王","doi":"10.12677/ja.2022.114009","DOIUrl":"https://doi.org/10.12677/ja.2022.114009","url":null,"abstract":"The long-wave transmitting antenna has a low working frequency and a long corresponding wavelength. The antennas constructed","PeriodicalId":64652,"journal":{"name":"天线学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66111257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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