{"title":"A Multi-band 5G Antenna for Smart Phones Operating at Sub-6 GHz Frequencies","authors":"Prajwal Patnaik, D. Sarkar, C. Saha","doi":"10.1109/APSYM50265.2020.9350684","DOIUrl":"https://doi.org/10.1109/APSYM50265.2020.9350684","url":null,"abstract":"The design of an 8 element 5G MIMO antenna operating at multi-band and multi-mode Sub-6 GHz frequencies LTE-42/43 and LTE-46 for smart phones is delineated in this article. In order to reserve ample space for the 2G/3G/4G antenna, the antenna elements are positioned alongside the longer edges of the smartphone. The sub-6 GHz antenna comprises of a T-shaped slot fed by a tuning stub and a microstrip feed line via coupling mechanism. A low loss substrate Taconic TLY is utilized in the design. The dimension of the substrate is 150 mm × 75 mm × 0.8 mm. The stacked 10 dB impedance bandwidths are 300 MHz and 800 MHz for low band and high band in Sub-6 GHz with centre frequencies at 3.6 GHz and 5.5 GHz respectively. A maximum gain of 10 dBi is attained in the sub-6 GHz antenna. The inter element isolation for the entire bands are better than 10 dB thus signifying lesser mutual coupling.","PeriodicalId":325720,"journal":{"name":"2020 International Symposium on Antennas & Propagation (APSYM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114603790","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":"Broadband Linear-Cross Reflective type Polarization Converter for X and Ku-band Applications","authors":"Mohammad Abdul Shukoor, Sukomal Dey","doi":"10.1109/APSYM50265.2020.9350677","DOIUrl":"https://doi.org/10.1109/APSYM50265.2020.9350677","url":null,"abstract":"This paper presents a novel linear to cross reflective type polarization converter for X and Ku-band applications. It comprises a 45° tilted resonating patch on the top of a thin FR-4 substrate, which is terminated by PEC on the other side. The converter exhibits Polarization Conversion Ratio (PCR) greater than 90% over 10.17 GHz bandwidth (from 8.2 to 18.37 GHz ) with 76.5% fractional bandwidth (FBW). Multiple surface plasmonic resonances are responsible for uniform PCR over the broadband. The reason behind the ideal response at resonant frequencies is illustrated by surface current distribution analysis. This design is obliquely stable up to 30°, with a minimum of 87% PCR, for the transverse electric (TE) mode and the same is observed for transverse magnetic (TM) case. The proposed linear-cross converter is compact with periodicity 0.213λL and thickness 0.07λL, where λL corresponding to the free-space wavelength of lowest bandwidth frequency. RCS analysis has been performed for monostatic and bistatic cases to demonstrate the capability of the proposed design in EM shielding applications.","PeriodicalId":325720,"journal":{"name":"2020 International Symposium on Antennas & Propagation (APSYM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116130532","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":"Rectangular Meandered Wire Inverted F Antenna for UHF Applications","authors":"S. Beegum, T. Chacko, K. Mukundan","doi":"10.1109/APSYM50265.2020.9350719","DOIUrl":"https://doi.org/10.1109/APSYM50265.2020.9350719","url":null,"abstract":"This paper presents a rectangular wire inverted F antenna for UHF communication devices at 406MHz frequency. The proposed antenna provides a maximum gain of 2.5dB and return loss of 12 dB at 406MHz frequency. The antenna with its circular ground plane provides a near symmetrical monopole pattern. The proposed design reduces the overall size of the UHF antenna and allows the user to keep the antenna confined within the communication device unlike projecting monopole antennas.","PeriodicalId":325720,"journal":{"name":"2020 International Symposium on Antennas & Propagation (APSYM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132997943","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}