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DAI HOC QUOC GIA HA NOI oOo" NGHIEN CUU, CH^ TAO PHAN T U THU OONG, CAU KI£N VA ANTEN SIEU C A O TAN D U N G CONG NGHE MACH DAI (Bao cao tong hop de tai nghien ciru khoa hoc khoa quan ly cSp DHQGHN ) Ma so QC-03-01 Chti nhiem de tai: GS.TSKH Phan Anh HA NOI-2005 Bdo cdo tSng hap di tai NCKH cSp DHQGHl MUC LUC • DANH SACH NHONG • NGLfClI THAM GIA THl/C HIEN DE TAI TOM T A T N H " N G K E T Q U A C H I N H C U A BE TAI DANH MUC CAC HINH Phan I: G i m THIEU CHUNG I Dat van de II III Tong quan cac van de nghien ctru ciia de tai E)ia diem, thai gian va phuang phap nghien ciru PhSn II: NOI DUNG VA KET QUA NGHIEN CtTU Chu-ang I: (Nguyen ly thiet ke angten mach dai I II /// Cau lao va nguyen ly boat dgng cua angten mach dai Phuang phap phan tich anten mach dai Tbiet ke va mo pbong anten mach dai hinh cbir nhat Chuang 11: Ihiet ke che tao cac linh kien thu dong sieu cao tan I Gioi thieu II III IV V Nghien cuu ly tbuyet sieu cao tan Nghien cuu thiet ke va che tao Do dac hieu chinh Nghien cuu phat trien Chvoiig III: Thiet ke bo khuech dai sieu cao tan cong suat nho I Cac buoc can thuc hien thiet ke: II III Cac phuang phap each ly cao tlin thiet ke bg khuech dai sieu cao tSn: Phoi hop tra khang tai loi vao va loi cua bo khuech dai TAI LIEU THAM KHAO PHU LUC: Phu luc A: Hinh anh minh hoa cac san pham da hoan Phu luc B: Cac bai bao Phu luc C: Cac bao cao khoa hoc, luan vin, luan an PHIEU DANG KY KET QUA NGHIEN CUtJ Bdo cdo tSng hap di tai NCKH cdp DHQGHN MUC LUC • DANH SACH TOM T A T NHUNG NHUNG • NGl/C^I THAM GIA THL/C HIEN DE TAI KET QUA CHINH CUA DE TAI DANH MUC CAC HINH PhSn I: GlOfl THIEU CHUNG I II Dat van de Tong quan cac van de nghien ciru ciia de tai III Dia diem, thai gian va phuang phap nghien ciru Phan H: NOI DUNG VA KET QUA NGHIEN ClTU Chu'o'ng I: Nguyen ly thiet ke angten mach dai I II Cau tao va nguyen ly boat dgng ciia angten mach dai Phuong phap phan tich anten mach dai /// rhiet ke va mo phong anten mach dai hinh chir nhat Chucng 11: I hiet ke che tao cac linh kien thu dong sieu cao tan I Gioi thieu II III IV V Nghien cuu ly thuyet sieu cao tan Nghien ciru thiet ke va che tao Do dac hieu chinh Nghien cuu phat trien Chirong III: Thiet ke bg khuech dai sieu cao tan cong suat nho I II Cac buoc can thuc hien thiet ke: Cac phuang phap each ly cao tan thiet ke bg khuech dai sieu cao tan; III Phoi hop tra khang tai loi vao va loi cua bg khuech dai TAI LIEU THAM KHAO PHU LUC: Phu luc A: Hinh anh minh hoa cac san pham da hoan Phu luc B: Cac bai bao Phu luc C: Cac bao cao khoa hoc, luan van, luan an PHIEU DANG KY KET QUA NGHIEN CUtJ Bdo cdo tSng hap di tai NCKH cap DHQGHN DANH SACH NHLfNG NGLfOI THAM GIA THUC HiEN O^ TAI GS TSKH Phan Anh PGS Nguyen Khang Cuong CN LeQuang Toan CN Tr4n Thi Thuy Quynh CN Tran Nggc Hung CN Duang Thi Quynh Thu X / CN Tran Anh Tuan Bdo cdo tSng hap di tdi NCKH cSp BHQGHN DANH MUC CAC HINH Hinh 1: Cau true ca ban cua mot angten mach dai Hinh 2: Nguyen ly boat dgng cua angten mach dai Hinh 3: Ky thuat tiep dien bang mach dai Hinh 4: Phan c\ic thang Hinh 5: Cac cau true phan cue tron Hinh 6: Mat cal cua phan tu hinh chu nhat vai nguon buc xa mat phang E Hinh 7: Tinh tra khang vao cua angten Vi buac song Hinh 8: Sa fnach tuang duang tinh tra khang vao cua angten ^4 buac song Hinh 9: Angten bang hep hinh chii nhat Hinh 10 Dap ung bieii dg-tan so ciia bg khuech dai Hinh 11 Cau true va phan bo dien tu ciia duong truyen mach dai Hinh 12 Sa tuong duang cua mot doan mach dai c6 chieu dai nho ban Hinh 13 Sa khoi ciia mot bg khuech dai cao tan Hinh 14 Phoi hgp tra khang bang mot doan day chem A / y^ Bdo cdo tdng hap di tdi NCKH cdp BHQGHN TOM TAT N H O N G K^T QUA CHINH CUA O^ TAI Ten de tai: Nghien cuu, che tao phan tu thu dgng cau kien va angten sieu cao tan dung cong nyhe rnach dai t—' • • Mas6:(X>03-01 Chu tri 6e tai: GS.TSKH Phan Anh Dia chi : Truong Dai Hgc C orig Nghe, Dai hoc Quoc Gia Ha Ngi 144 Xuan Thuy, Cau Giay, Ha Ngi Dienthoai: 04.7549270 Nhirng ket qua chinh: a Kit qua ve khoa hoc (cac bai bao va bao cao khoa hgc da cong bo): ''Study and design of a Compaci High-gain Broadband Circular Polarization Array foi' IVLAN operations" Tran ngoc Hung, Phan Anh, Hoi nghi v6 tuyen dien tir loan quoc Ian thu 9(11 /2004) ^'Analysis of the impact of lumped Components worked into the coupled congruent line Filter on its performance", Tran Anli Tuan, Phan Anh , Hoi nghi v6 tuyen dien tij toan quoc [an thii (11/2004) - ^'Microwave phase shifter using hybrid combined varactor diode'\ Tran Thi Thuy Quynh, Phan Anh, Hoi nghi v6 tuyen dien tti toan quoc Ian thu (11/2004) - ''Some study on Scattering Properties of Travelling-Wave Excitation of Cavity-Backed Arbitrary Narrow Slot Structures by Moment Method'\ Phan Anh, Tran Minh Tuan, Hoi nghi v6 tuyen dien tu toan quoc Ian thu (11/2004) - 'Thiet ke anten mach dai phan cue trdn dung cac he thong WLAN'\ Trin Ngoc Hung, Hoi nghj NCKH 2004, Truong DHCN Bdo cdo tdng hap di tdi NCKH cSp DHQGHN - "Techniques of Widening B andwidth of Coupled Line Filter Using Lumped Components", Tran Anh Tuan Phan Anh, The 6^'' MINT Milimetter-Wave International Symposium, The 7'^' Topical Symposium on Millimeter Waves, February 24-25/2005, Sofitel Ambassador Seoul, Seoul, Korea b Kit qudphuc vu thuc ti : Cac san pham da dat dugc: + Ve anten sieu cao tan dung cong nghe mach dai: - Angten mach dai phan cue thang: Nghien cuu ly thuyet thiet ke tong quat (cau true, cac phuang phap ma rgng dai tan ), Thiet ke, mo phong va che tao cong mau angten dai rgng boat dgng tai tan so trung tarn 2.45 GHz , da dugc kiem chung bang each dac thu nghiem - Angten p han c uc tron: Xaydimg cac mau anten tren phan mem mo phong ANSOFT Hoan mau angten mach dai phan cue tron, tan so 2.5 GHz Da dac va thu nghiem cong cac he thu phat WL.AN \ r ^ ^ + Ve cac cau kien va cac phan tu sieu cao tan - Khuech dai cong suat: Nghien cim ly thuyet thiet ke bg khuech dai cong suat tuyen tinh (lop A, AB), mot so ky thuat bu meo thiet ke bg khuech dai cong suat; che tao thii nghiem rngt rriau khuech dai cong suat (Pin=lmW, Pout=4W) - Bg chia cong suat: Nghien cuu ly thuyet thiet ke, thuc hien mau thiet ke (bg chia va bg chia 4) - Cac bg Igc: Nghien cuu ly thuyet va thiet ke LPF, BPF UHF/VHF dung cong nghe mach vi dai - Mach Hybrid: Nghien cuu ly thuyet ve nguyen ly, each xay dung cac mach Hybrid Che tao cong mot mach Hybrid boat dgng tai tan so 2.5 GHz, suy giam moi cong 3dB - Bg cong cong suat: Tim hieu nguyen ly, che tao cong bg ghep cong suat CO tan so hoat dgng 700 MHz, cong va cong Bdo cdo tdng hap de tdi NCKH cSp BHQGHN - B6 tao dao dgng sieu cao tan: c Kit qua dao tao: + Hai giai nhi ciia sinh vien va hgc vien NCKH 2003: - De tai: " Thiet ke bg Igc thong rbap boat dgng a dai viba co dap ung bien gan ly tuong" - De tai; '7hiet ke che tao bg Igc itiong thap dai tan 850 MHz'" + Giai ba sinh vien NCKH 2003: - De tai: 'Nghien cuu, thiet ke va cbe tao bg khuech dai sieu cao tan dung cong nghe mach dai" + Hai khoa iuan tot nghiep 2003: - D6 tai: "Nghien cuu, thiSt k§ va che tao bg khuech dai sieu cao tan dung cong nghe mach dai", bao ve thang 5/2003 - D6 tai: ^"Ihi^t kl chS tao bg Igi thong th4p dai \kn 850 MHz'\, bao ve thang 5/2003 + Mot luan van thac sy, bao ve thang 1/2005: - De tai: "Nghien cuu, mo phong va thiet ke he dieu khien bup song cho angten mang pha" d Ket qua nang cao tiem lite khoa hgc (nang cao trinh can bg va tang cuong trang thiet bi cho don vi): De tai da dong gop rat nhieu cho cong tac dao tao sinh vien va hgc vien cao hgc cua khoa, ddng thai ciing nang cao trinh chuyen mon cho cac can bg tham gia thuc hien Ngoai mot s6 trang thiet bi cung dugc tang cuong tu kinh phi ho trg cua de tai, gom c6: - Mot so vat tu, linh kien sieu cao tan - Cac tai lieu khoa hgc (sach, tap chi ) va ngoai nuoc e Tinh hinh sir dung kinh phi: Bdo cdo tdng hap di tdi NCKH cdp BHQGHN Da su dung net kinh phi dugc cap (40 trieu dong) -H Giai trinh nhirng khoan chi Ion: - Thue khoan chuyen mon: 15 trieu dong - Mua nguyen vat lieu, dung cu thi nghiem va tai lieu: 20 trieu dong - Chi phi khac: trieu dong Bdo cdo tdng hap di tdi NCKH cdp DHQGHN Phlin I: GIOI THIEU CHUNG L DAT VAN DE; > ' ' Hien nay, cac thiet bi sieu cao tan dang dugc sir dung bet sue rgng rai rat nhieu ITnh vuc dac biet la ITnh vuc truyen thong Cac phan tu linh kien sieu cao tan dugc ung dung a xki nhi^u khau he thong thong tin v6 tuyen Dong thai thong tin v6 tuySn cung la phuang lien de phai trien he thong thong tin hien dai, vi du: thong tin di dong thong tin chuyen tiep mang vien thong hay thong tin truyen dii lieu mang may tinh Trong xu the do, viec nghien cuu va che tao cac phan tu thu dgng va cac cau kien sieu cao tan la nhung rihu c^u \k ySu va dang dugc tien hanh rgng khap tren the giai Yeu cau ve tinh nho gon, linh dong ciia cac thiet bi cung la mot yeu to dang quan tarn Cong nghe mach dai doi dap ung dugc nhu cau doi hoi Viec che tao cac ph^n tu c4u kien sieu cao tan hau nhu bat buoc phai dung den cong nghe mach dai D§ tai "'Nghien ciru, chi tao phdn tu thu dong, cau kien vd angten sieu cao tan dung cong nghe mach dai" tap trung vao viec nghien cuu va che tao cac phan tu ang ten va c§u kien sieu cao tan dung cong nghe mach dai, vai muc tieu la phat trien thong tin v6 tuyen a dai song sieu cao tin Day cung la mot huang nghien cuu cua bo mon Thong tin V6 tuySn, khoa Dien tu Vien thong n TONG QUAN CAC V A N DE NGHIEN ClTU CUA DE TAI De tai tap trung nghien cuu theo hai mang chinh: - Nghien cim, thilt ke cac loai anten mach dai, gom c6 ang ten phan cue thang va phan cue tron, c6 tang ich va dinh huang cao Dai tan lam viec khoang 2.4-2.5 GHz, phu hap cho cac bo thu phat cac he Wireless LAN - Nghien cuu, thilt k8 cau kien va cac phan tu sieu cao tan de tu c6 the xay dimg mot he thdng thu phat sieu cao tan hoan chinh, phuc vu cho muc dich giang day, nghien cuu va ung dung thuc tien Cac noi dung bao gom: t 11 Li= 1.2296 Vu Trung Kien L4 = 1.2296 (a) Zo = 1-2296 f Zo = i 2 ' Zo=l 2o=l I / Z o = 0.586 'Zc = 1.2296 +1 / Zo=l i y Z o = 0.394 / Z o = 0.586 Hinh 2.5 Thii tuc thiet ke cua bd Ige thdng thip 850MHz (a) Thidt ke' so bd cua bd loc vcii cac phin tu tap irung (b) Dimg phep bien ddi Richard dd chuyen ddi cudn cam va tu dien doan day ndi tiep va doan day re nhanh (c) Bd sung them cac phin tir dan vi tai dau cud'i va giira ciia mach Igc Sau dd ta cd thd ap dung phep ddng nhit (a) tir bang cho hai doan ngin mach mac ndi tie'p ciia bd Igc Trong ca hai trudng hgp ta thiy ring: n ' = l +Z2/Z, = + 1/1.2296= 1.813 Kei qua dugc ve tren hinh 2.5.d Cud'i cung ta ehuydn ddi thang tin sd va thang trd khang ciia mach bing viec nhan trd khang dac tinh chuin hda vdi 50 Q va chgn dudng day vdi chidu dai X/S tai tin sd 850MHz Tir(1.7)taed: c =1.875 (cm), f=m = 8/V^ vdi hing sd dien mdi hieu dung6\^ dugc tinh theo (1.5), (1.6) bidt s^ =4 Mach cudi cimg dugc chi Md hinh mach in tuang img ciia hinh 2.5.e dugc minh 12 Vu Trung Kien hoa d hinh 2.5.1 d dd cac dudng diy vi dai cd rdng W dugc tinh toan theo cdng thiic (1.4) bidt gia tri trd khang dac tinh R^ tuang ling tren hinh Viec tinh toan true tidp W va s^^ la rit phiic tap Do dd em da dung cdng cu lap trinh Pascal dd don gian hoa viec tinh loan (xem phu luc) Z^=l Z^=2,23 Z^=2.23 V/ Z^=l '// V/ '// 2b= /Zb= A= A= 0.586 0.394 (d) 7/ 50Q 1.813 /z^= 1.813 0.586 i=Xy8caia?= Z^=50Q Z^=111.5Q 2^=111.50 Z^= 50Q '7 / //^77 /^ 7/ V/ // // J J 2^= A= A= A= A= 29.3Q 90.650 19.7 n 90.650 29.30 l=X/8 tai aj = 0.85 GHz 50 O 29.3Q 90.650 19.7 O 90.650 29.30 (0 Hinh 2.5 (d) Ap dung phep ddng nha't Kuroda (e) Chuyen ddi thang trd khang (f) Ch^ tao bd loc dudi dang dudng day Microstrip Dap ting bien dd va dap ung pha duoc bang may phan tich mang sieu cao tfe ciia bd loc nhu hinh 2.6 va hinh 2.7 Cac bd loc cd bac tha'p thucmg khdng cd cat sac b mien chan dai vay d^ tang ddc sau tSn sd cat thi ngudi ta phai thiA k^ cac bd loc cd bac cao hon bang each tang cac mat loc 13 Vu Trung Kien 2883/85/89 F r i qKH_3.:, CHI -21.45B^dB 9:43:88 FORHAT, I.Z7SSH2 ^»«cLt C2 DEtAir StUlH PQUUI UH HA6' It : 2: a: 462.-4 l6MHz SS4.333MHz 229.666MHz : 105 0 G H z S T T Z / b UUUURz- - O Z cJB - 3 dB - 6 ctB - dB -21 42B'aB" yV^/^ Hinh 2.6 Dap ling bien dd ciia bd loc dugc thidt ke Hinh 2.7 Dap tuydn pha ciia bd Igc thdng thip 850 MHz Hare 1/2 3( N >V DAI HOC QUOC GIA HA NOI KHOA CONG NGHE VU TRUNG KIEN >v' THIET KE VA CHE TAO CAC BO LOC SIEU CAO TAN DUNG CONG NGHE MACH DAI KHOA LUAN TOT NGHIEP DAI HOC HE CHINH QUY NGANH: DIEN TlT- VlfiN THONG HA NOI - 2003 ^u