11 research outputs found

    Highly Efficient Wideband Harmonic-Tuned Power Amplifier Using Low-pass Matching Network

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    This paper presents a design approach for a broadband and high efficiency harmonic-tuned power amplifier (PA) based on a low-pass filtering (LPF) matching network (MN). The MN is composed of quasi-lumped open stubs (λg/8 λg/4). Compared with widely used conventional Chebyshev LPF matching networks, the proposed output matching network provides a good approximation of desired lumped elements over the entire frequency band. The MN offers a sharp roll-off to the transition band. Optimum fundamental and second harmonic load impedances are obtained by identifying the high efficiency regions on the reactance plane for second harmonic band placement, the design is reduced to a fundamental matching problem. A PA with this concept is designed from 1.0 to 1.5 GHz (FBW=40%) using a Cree GaN HEMT CGH40045. The peak output power, drain efficiency, and gain are 47.3 dBm, 80%, and 12.6 dB, respectively at 1.2 GHz. Furthermore, the PA is evaluated using a COFDM signal with an average output power of 40 dBm, a peak-to-average ratio (PAPR) of 10 dB, and a bandwidth of 2.5 MHz. The PA can achieve a peak drain efficiency of 49% and the adjacent channel power ratio (ACPR) of-26.3 dBc at 1.3 and 1 GHz

    Frequency Reconfigurable Antenna Array for MM-Wave 5G Mobile Handsets

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    YesThis study proposes a compact design of frequency-reconfigurable antenna array for fifth generation (5G) cellular networks. Eight compact discrete- fed slot antennas are placed on the top portion of a mobile phone printedcircuit- board (PCB) to form a beam-steerable array. The frequency response of the antenna can be reconfigured to operate at either 28 GHz or 38 GHz, two of the candidate frequency bands for millimeter-wave (MM-Wave) 5G communications. The reconfigurability function of the proposed design can be achieved by implementing and biasing a pair of diodes across each T-shaped slot antenna element. Rogers RT 5880 with thickness of 0.508 mm and properties of ε = 2.2 and δ = 0.0009 has been used as the antenna substrate. The antenna element is very compact in size with a good end-fire radiation pattern in the frequency bands of interest. The proposed beam-steerable array provides very good 3D coverage. The simulation results show that the proposed design provides some good characteristics fitting the need of the 5G cellular communications.Innovation programme under grant agreement H2020-MSCA-ITN-2016 SECRET-722424, UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E022936/

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    §oto^*^fco& CfKMt JEWS; Mt^najLASBcir-s. WEDNESDAY,; "' • :- W- vv- Montague l**»S»*s»4»5»>»Hai«i;' Ji:XK ;a. t>*-: ^iWJwwiw.lctwSiw'FwiiSje*,.', . ...; Ctirisiiui EmiMwr CoevteW. As ha* already been announced tlirougu ihe..Live Oak,' tnii'imtdnter- national •C«»v«*Mi«n «>{ theA'Sttstinn Endeavor Society is to he held in Ssr. 'Kra'.n"i**'«>*'.siy M- it'ehtsfw:' since many inquiries aiv being made -.,!>..u' she convention the fo'lou lag ma\ , *»e of interest.*"' The railroad fin,' trom any point within 4i»m ..ui'.,** of S;m Kt-.m- cisr-n witi'l»eoneami pp.~third i*egtijar rate*. A* regards entertain menu th» sivate Pfwident says in a i-iivular l..*,*... :**a iM ma&s e\^ni>ix-tu*C; Matt Sesnieh'y. *** acq slaughter at Sari Jose with the death "af Kid Erssus Matt Semii"-'*- *h,. kSjed jpm Maui'no in a 1-oxir,.*: ivewi -,5 Sa**; j.y is now on trial lor mans'sushu-r. . The'n*y*wry'.that" surrounds' the- death, of Hoffman. the^JSan . tVao^-ae*■ merchant, is i-reasir.;'snucli "-ni*re*s. "* An effort w briny made lo prove that j he «w murdered by r"igei. his. t>oe's-'• .■keeper, - * r-OF~ of .May 2U, that "many ds'legate* can reduce their expense* to fl per day, but twice that amount shoukf he allowed to coyer all expenses, unless one :*. unusually e**onmiVal." Inquirii-sooti- i-eiijing entertainment may be addressed i*> Donald McKemsie at the San Francisco Y. M. C. A., or given to one ■if the member* 01 the local committee composed, of Mis* Addle < 'low. Theodore Zschokke4ind Frank 1'. lVty. wlio , will forward them to headquarters*, or *rme may-wait until tvaclung'San Frait- (-isco. where he will* M- met at-the Valencia street dejmt- and assigned ii |il:iei». or g" direct to the State headquarter* in Mechanics' PavUIion. t'nder the head of delegates,, ihe -i'loident-again say?: ;T.I>*re wli! be no "delegrat*!*to this 'convention. Every Kntlenyorer in the world'ha*an iiivita- Tlnit lo h,.. j.ijis'nt. There will also be n welcome and 11 place for any nnixin- vnrleii person whom you can induce to ;u*,s.n.|in»iy you." . .-„-," ,^«,lWMH'JgfflK«r8 The diamond 'uh;'.t*e switig-tWs■--fed ■ SS " severe *,* .ex-, Mirth-; gathering .,{ people sty iu London and probably the iargesi number of d(pk>* mats that ha*.'century. . . .-. • - ; f he Isthmus .;f -" perieneing a succession «! quakesan.l it i* feared t* is forming. Hearing sounds'are bear,! from under the ground. The' peopk are greatly."righteued. ' ■';.. • . .. The sugar truss has devised a scheme to buy Cuba at a cost of some millions of dollars and govern Shetland after the manner of the Kast India company. Such a plan "would not meet the approval of either the Vrited states or- fuba. ''' t The Sal. Kraiicisiv Chrunicie is raisin; a (und to pree tli«- waif* of th-it-citv , '— 1 * ao outing ,*: su.. ti.-eKs -;,. the ,vuntry. For each t'l rais. d uu child wilt have such a lacalii.' , and ab/>nt ^AHi is now available. The project is a most worthy Orizmdies. Dimities. Gr.i.<< Lawns and 6alicoes. fwan ... sJfc up;-— "~_. ."""" —— --—- •-—-s- ■ NawJs^our tiipefor Bargains in IHHi*« Cuode. Summer GorsetSs^ *;oc :'.-''.-4^4d--C^>v-4>-s.-A^r^-K-'-s&^^ Nlttlii n-jiry |I'jfc?l«.»\v C6i*»t.'.;"— "-—-""._ MRS. 08TRANDER^S i._JSiaa,e..li'i*_i84!ix*m«tins;,a.si*henui. 1 to settle the lands «•( Washington with . the 'unemployed, and the tiovcrnor of that State is in sympathy with the . moye-uient. lflVliscan deviisejome ;p]ah~-to~ belter the cundiliou of the iniasses. he will have proved himself a irreater lieiiefaetor of mankind than i he could ever become as strike leader. On Tuesilay. .Iuiie22d. at .'l-p.m. ar ; he n-sidenee of Mrs. E. f.. Power* the marriage, of her***lf to- Mr. E. i-yman was.i-elebrat**<l. There w»*r»* but relative* ami 11 few intimate friend* of both present." The jiarlors and vestibule were *profii**ely d**eorated wjlh i*ose*. pinks awl- sweet peas. The bridal party,entsred the back parlor to tho 4!eo. E. I.ueas, the plumber and strains of a wedding-march, th.e guests; stove dealer, is introducing a n«w water being grouped in the front parlor, j Imek r,,r stoves which appear* to be a Rev. A. Ii. Show is-rforimil Ihe mar-, gr,*at improvement over the old style. -eiage. *eri4ee»- - --T-be - irfingratulatlons^ Instead of being piin*,*d iiiilio tire hc?x.: were ten«ier«l.'the bride and ..groom! jtlie water pipe is arranged in a coil in followed by a season of hiippy'."eiiiiver-j thestov? pipe. The pipe dws not till satlon. Thereafter nrfri-sjiinent* were -up with sediment, and the necessity-of served. All t4M» soon the time of de- a new water back every few mouths is" r^tat^Pr4>'4mil)«rw-'tfeiPc^i|.^^ prixv^rTlHicwilier. Is tiflde and jfiwiin away, while showci* j healeil much sooner than in the old of rli*e and old shias* further impresseil; way and not so much iiiv is r,.q'inred iij»on tlli'm tin; g<M«l wish,* of their .to heal the oveii. "• friends. M-rs. I.yman was .for ihre PALO LIVE A - LOYAL " QUACI.B ; OlIR J. «l. MORRIS REAL ESTATE and INSURANCE h >i.t-~ ?<•%- I-O IIAMv .._".... . PALO AUTO. CALIFORPHA r;i___**:iiioiMM*aK3feft'.:„„^._— £68. ~-^«o. -«'.' Furnished House, io nxiiiiS and bath. UNFU RNISHEO House 7 Rooms and ,bath. water free. FiaT~T;iRooms and bath, watec free. Cciuage, 6 Roomsand bath, water free. Cottage, y Rooms and bath, water free. House. 6 Rooms and bath, water free. -House, 7 Rooms and bath, water free. Willis Sanor, the engineer of the waterworks, says* that the- smaller years the'eWeient and beloved teacher of thi primary department. • It was ihe loving hands of her pupil* that j l'uml>- »'hiehi* used for geih-ral pum,^ brought- such, an abundance of Howei*s. j ••>*■.. «"l»pUj» WW^tjM<W «f water an Mr. Lvman is also weir known to our •>»»»•■ 11u> «peeW«»««» Squired " ' The-' only li\0»K> gallons-an hour. to.ftv us*h1 in case* of] fVWjral-j kins a minute against loo jioun.ls pii*s- sure.; The efficiency of the system is j ciUsum*. ha#ing conducted the llrst, dairy here for several yeai*. They t-tanP"- nUmp. ;^ili"«^deatthrirfa™^ ^county mail lietween here, and Moun- - lain Viow;--.--Tholr-jniu>,v*f'rIenilis_jfilll!- ,- .■', - * .. * r ..^. 'irreaterthan wasaniicipated. in goml wishc* for their future. P"?™ ' Herbert Italy res.wived.a telegrUin The'Equality flub will meet Thurs- viwuirdayannonpclniTtheileath.of his day'. .(tomorriUKi-ttftermwo. at Mr*, little son Harold, aged ten months, e-urlwi-t'* home on liryant-stKvt. This Mrs.'Daly and the iwo children left a I is the ix-gular uaviiug and considerable liionlli ago on a vtafc to her iwople' at | business will «.mc- Infotv the club. A Hklah. Harold had not lujon i» goml cordial invitation isexteiideil.toall who heulth for some time, yet his-doath j desire to Iciiruanythiiigab,,ut t'.ie work was not exacted anil is a *a«l iH-miv^Uif the club. The meeting will Ik- at11 iiu.nt to the j«reuts. lo'diH-k. M,..(lairaTuiy whiVhasThe ™uH«'l for \ - The Marl|a»*a. Uiue.llo has enWred " niaking the house connections with Ihe upon Its 44th year, having been founded To*i, water wofk*. is putting them in I in. J8SI. It;h-.shada useful and pros- at the ra^^flwentyaduy: Thcen-jper»us.Tireer,andits p««ent owner,,. lire contract will be llnislMil on or tO'O-LJ WOWK • lis* —i-« 11-: # t ."Oi^tsir Me«jis.Adaii.aild Itaas. anrdctertnined almut .luly 1st. Those who are now using the water pn.Htonnw it softer iTiiih :ihe water that lias lieen supplieiK U>~ take the faithful old journal safely pal the half wiitttry mark. May good fortilheatumd the'velei*an (lawlle. U+J ■. \v i.;- \u.: i.« .Mr SAN FRANCISCO PRICES Give us a call and get our prices AT'THK OHITm.'JHK*. ■i Ai.KNl'AH -*«?- UKiatiiOt'-t* SKKVIC.^. AT PAM> ■Vt-Tt>: Ail SaISTS I'ltritt'll, Hev. K. II, tNvt. rtvior >h»ri tin: prayer U u. m. ami t-vunitiK t>rayiT 'f.vw ,- m Tho lloly (Vmmaniuit on tiu> tlr-M Sum)it\ ot tilt- iiUHilli nt H~n iu I M. K, t'nriun. Kv\. V. M. Uurwoit, oaslor, SitutlttV.Selu>t»l 10 S, in., proaeiittttl Mt>r\uv» 11 u.ui. ww T::«>p»i. Kn worth l..Mk'ui- «:t;> p.m .hiuior Loaguofl \*. m. l*rayor ttu*t<ttit(: ovory VVi>ltM'(tiltty T:a»p ai. 1 l*KK«-IIV IKKIAN rtirilt'H. Itrt; AV. t». Nli-tiotas pu*lor. Sumiuy s-.ti.vni \t.-*:. u. ni, tin-at'litnt; I swvlwn 11 11.111. utul :.-:*' u ui. t'lirUtian Kn tleiivttr fl;*t> i-.t" Pniyt-r uuvtitiK ovory W'v>\ tu'Mlay I::*i ii..in H*ITI*-.Ti*HrH«'H. S*T\iftMU lOWtT NorlttH* IlftH stt 3,»urt-ltK'k (». 111 t imiMTi*N I'oi'Kt'ii, 8onioo* nt Norirw halt SUhtlliy ninrnni).: ntlti OVftitlli;. At.MATriKi.11: * M I" t'nt'Ht'H. Mr. Jan. t'Vn.tUHoii, avt in>: pu> tor. • Suiidav Si'tmtit lH:i-H 1*. in . |irt-ai>lline nt-r vlom 11 ttw a- ui. antl 7:»i t>. in. Kitwonii l.fumtr ini*«*t« Sunday nt *:,10|». m; : ST. Ai-iiVHM*K I'lH-u.'it tt'atliolloi, sorvii't-s uti Itrwt SiiiuUv of Lilt' iiunuli at l(l:.tla. Ul. Musi rvory Suiiiiiix at :< n.m. AT NUM.ii l'AHU: **Ktt»MTTKMtAX<?|iliH»'H( KvoillliK H«fv(iHV«mTy Ut M o'fltH'U, I'lindnrU'il 1>\ }1, Si. l»»inu-r r. IV ». V., K. *t-1 |i. m. Clll-Ht-H ot [iii'~N ATM" ITY Of Ot'H l.OHO, K'ntht't Ktonlao. nvitir Munh vvvry Sunday at I0;au a.m.; tlivt Sunday in unmili- »t tt and n»:.nr a.m. thisitv CHi'H-'ti ficv. Kdwant I.. t*»nu>bti ri'i'ttir. Suot'lu.v HOrVttHm;, HMinUvv HLibtml Ul 11. iu. MomitiK tirayop II a. in, lloUfCotu- muultin jMrat Sunday of tnu mtmtri ami i.'Mivu>K. I! a.

    SECRET - Secure Network Coding for Reduced Energy Next Generation Mobile Small cells - A European Training Network in Wireless Communications and Networking for 5G

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    SECRET is a collaborative European Training Network (ETN) committed to create an “excellent” educational training platform for Early Stage Researchers (ESRs) in the field of wireless communications and networking for 5G. The project is recently funded by the European Commission under the H2020 research and innovation program, through the Marie Curie People Program. This proposal targets to narrow the gap between current networking technologies and the foreseen requirements of future 2020 networking, through the recruitment and training of 13 ESRs. SECRET aims to strike a note by delivering higher capacity, ability to support more users, and lowering the cost per bit by adopting technology trends widely accepted to form part of the 5G roadmap, through the deployment of new disruptive “femtocell” type cells on demand, to what we refer to as mobile small cells. This will be complemented by a wireless high-speed fronthaul to bridge the small cell network to the core. Moreover, novel techniques will be investigated, including “network coding”, “cooperation”, and “energy-aware smart front-end”. Additionally, due to the confidential information that will be communicated over in future networks, a lightweight security framework built on secure network coding will be proposed
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