Patent SG-11201909057Y-A (SG)
Title: Compact wideband high gain circularly polarized antenna
Inventor: NASIMUDDIN -
IPC: H01Q13/10
Filed: 2018-03-19
Abstract: Lowersubstrate T 112 Ground plane 108 via 110 Probe feed (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 October 2018 (04.10.2018) W I PO I PCT o n °nolo OH 1101 ioo IIIII Imo oimIE (10) International Publication Number WO 2018/182507 Al (51) International Patent Classification: HO1Q 1/38 (2006.01) HO1Q 13/10 (2006.01) HO1Q 21/24 (2006.01) HO1Q 19/00 (2006.01) (21) International Application Number: PCT/SG2018/050118 (22) International Filing Date: 19 March 2018 (19.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201702690U 31 March 2017 (31.03.2017) SG (71) Applicant: AGENCY FOR SCIENCE, TECHNOLO- GY AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10 Connexis North Tower, Singapore 138632 (SG). (72) Inventors: NASIMUDDIN, -; c/o PKM, Institute for In- focomm Research, 1 Fusionopolis Way, #21-01 Connexis South Tower, Singapore 138632 (SG). QING, Xianming; c/o PKM, Institute for Infocomm Research, 1 Fusionopo- lis Way, #21-01 Connexis South Tower, Singapore 138632 (SG). (74) Agent: VIERING, JENTSCHURA & PARTNER LLP; P.O. Box 1088, Rochor Post Office, Rochor Road, Singa- pore 911833 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. = (54) Title: COMPACT WIDEBAND HIGH GAIN CIRCULARLY POLARIZED ANTENNA 100 Upper substrate 120 Radiating patch with ring slot Parasitic patch and via 102 104 x FIG. 1 (57) : A compact wideband single feed circularly polarized antenna is provided. The circularly polarized antenna may include a ground plane. The circularly polarized antenna may include a radiating patch with an embedded ring-shaped slot. The circularly polarized antenna may include a via that shorts a round section of the radiating patch surrounded by the ring-shaped slot to the ground plane. The circularly polarized antenna may include a coaxial feed. The inner conductive material of the coaxial feed may be connected to the radiating patch and the outer conductive material of the coaxial feed may touch the ground plane. The circularly polarized antenna may include a slit-slotted parasitic square patch. [Continued on next page] WO 2018/182507 Al O II (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) in black and white; the international application as filed contained color or greyscale and is available for download from PATENTSCOPE