(12) Patent Application Publication (10) Pub. No.: US 2011/ A1. Hsu et al. (43) Pub. Date: Jan. 6, 2011

Transcription

1 (19) United State US A1 (12) Patent Application Publication (10) Pub. No.: US 2011/ A1 Hu et al. (43) Pub. Date: Jan. 6, 2011 (54) ANTENNA ARRAY Publication Claification 51) Int. C. (75) Inento: Cheng-Huan Hu, Taipei County (51) IO I/36 ( ) (TW); Tung-Wen Chiu, Taipei H01O 2L/00 ( ) Taipei County County (TW). (TW) Fu-Ren Hiao, (52) U.S. Cl /893: 343/700 MS (57) ABSTRACT Coepondence Adde: An antenna aay compie a pluality of adiation conduc SCHMEISER OLSEN & WATTS to, a fit tanmiion netwok and a econd tanmiion 18 E UNIVERSITY DRIVE, SUITE # 101 netwok. The adiation conducto ae aanged ymmeti MESA, AZ cally. Each adiation conducto ha a fit lateal and a econd lateal. The fit lateal ae extended to delineate a fit tan (73) Aignee: ADVANCED CONNECTEK miion netwok aea. The econd lateal ae extended to INC., Taipei County (TW) delineate a econd tanmiion netwok aea. The fit tan miion netwok i aanged in the fit tanmiion netwok (21) Appl. No.: 12/556,383 aea and ha a fit feede point. The feed am of the fit tanmiion netwok ae connected to the fit lateal of the (22) Filed: Sep. 9, 2009 adiation conducto. The econd tanmiion netwok i aanged in the econd tanmiion netwok aea and ha a (30) Foeign Application Pioity Data econd feede point. The feed am of the econd tanmi Jul. 3, 2009 (TW)... O \. 2 ion netwok ae connected to the econd lateal of the adia tion conducto. Sy xxxxxxxxxxxxxxxxxixxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxx xx w... ''. 8 8 ''. S. S. xxxxx xxxxxxxxx xxxx xxxx xxxx xxxxxx 8 ays YS ''. R R S. S. S, S. S. S. S. S. SR S S. S. S. S. RS x8 RS w K & \ : w S. :& S.---- Yax i., ex-exy-aa xy^x ''''''''''' axe aexxxx w w w ix Y S S8 R R S S8 a &

2 Patent Application Publication Jan. 6, 2011 Sheet 1 of 6 US 2011/ A1 xxx xxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxx xxxxxx xxxxxyxxxxxx xxxx xxxx xxxxxxxxxx xxxx xxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxx xxxxxxx xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx ºº::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::- xxxxxxx xxxxxxx xxxxxxxxxxxxx xxxxx ************************************************************************;? aaa WXXXXXXXXXXXXXXXXYXXXXXXXXXXXXXXXXXXXWXXXXXXYYXWXXXXX a >>>>>>>>>>>>*>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *******************************************************************************************************************) A *

3 Patent Application Publication Jan. 6, 2011 Sheet 2 of 6 US 2011/ A1

4 Patent Application Publication Jan. 6, 2011 Sheet 3 of 6 US 2011/ A Ah?ha (N. Y. I 1' V Y Stat Stop 4.0 Fequency (GHz) FIG.6

5 Patent Application Publication Jan. 6, 2011 Sheet 4 of 6 US 2011/ A1 (db) / Stat Stop 4.0 Fequency (GHz) FIG.7 (G) (Alle Sé/NSAS) RX27AN/-// Q- latea A10 Feguency (MHz) Gain (dbi) FIG.8

6 Patent Application Publication Jan. 6, 2011 Sheet S of 6 US 2011/ A1 Feguency (MHz) 2500 Gain (dbi) FIG.10

7 Patent Application Publication Jan. 6, 2011 Sheet 6 of 6 US 2011/ A1 221

8 US 2011/ A1 Jan. 6, 2011 ANTENNA ARRAY BACKGROUND OF THE INVENTION Field of the Inention 0002 The peent inention elate to an antenna aay, paticulaly to a dual-feede point dual-polaized antenna aay Deciption of the Related At 0004 An antenna aay contain a pluality of antennae equentially aanged accoding to a pecial ule. It i had to contol the adiation patten of a ingle antenna and had to attain Sufficient gain theefom. Futhe, the impotant paam ete of a ingle antenna ae le likely to atify a high tandad application. Theefoe, ome poduct needing high tanmiion quality hae to adopt antenna aay. In an antenna aay, the component antenna unit ae aanged accoding to a pecial ule and hae a pecial ignal feeding method to attain the equied effect. The geate the numbe of antenna unit of an antenna aay, the highe the gain, and the lage the ize FIG. 1 i a pepectie iew of a Dual Polaized Micotip Patch Antenna Aay fo PCS Bae Station' di cloed in a U.S. Pat. No. 5,923,296, wheein a et of coppe patche 3 and a et of coppe patche 5 ae altenately aanged on a pinted cicuit boad 1 to fom two antenna aay polaized etically to each othe. Howee, the olume of Such a deign i eeal time lage than that of the odi nay antenna aay. Beide, the two antenna tuctue ae aymmetic. Thu, the adiation patten theeofhae a geat diffeence, and intefeence i likely to occu theebetween. SUMMARY OF THE INVENTION One objectie of the peent inention i to poide an antenna aay, wheein fit lateal and econd lateal of adiation conducto ae extended to epectiely delineate diffeent tanmiion netwok aea, and wheein the tan miion netwok aea do not oelap, and wheein the feed ing junction of the adiation conducto ae aanged at appopiate poition to make two coeponding adiation conducto hae a phae diffeence of 180 degee, wheeby the co polaization of the antenna aay i educed and the gain of the antenna aay i inceaed Anothe objectie of the peent inention i to i to poide an antenna aay, wheein a fit tanmiion net wok and a econd tanmiion netwok ae epectiely aanged in diffeent tanmiion netwok aea, wheeby i effectiely educed the ignal intefeence between the tan miion netwok, and wheeby i implified the tanmiion netwok, hotened the path of the tanmiion netwok, and inceaed the tanmiion efficiency of the adiation ignal To achiee the aboementioned objectie, the peent inention popoe an antenna aay, which com pie a pluality of adiation conducto, a fit tanmiion netwok and a econd tanmiion netwok. The adiation conducto ae aanged ymmetically. Each adiation con ducto ha a fit lateal and a econd lateal. The fit lateal of the adiation conducto ae extended to delineate a fit tanmiion netwok aea. The econd lateal of the adia tion conducto ae extended to delineate a econd tanmi ion netwok aea. The fit tanmiion netwok i aanged in the fit tanmiion netwok aea and ha a fit feede point. The feed am of the fit tanmiion netwok ae connected to the fit lateal of the adiation conducto. The econd tanmiion netwok i aanged in the econd tan miion netwok aea and ha a econd feede point. The feed am of the econd tanmiion netwok ae connected to the econd lateal of the adiation conducto The feed am of the fit tanmiion netwok and the feed am of the econd tanmiion netwok ae epec tiely connected to the fit lateal and the econd lateal of the adiation conducto, wheeby the ymmetically aanged adiation conducto can geneate two et of ig nal etical to each othe. The fit lateal and econd late al of the adiation conducto ae extended to epectiely delineate diffeent tanmiion netwok aea. The feeding junction of each adiation conducto i aanged at an appo piate poition, wheeby the two coeponding adiation conducto hae a phae diffeence of 180 degee. A the adiation conducto ae ymmetically aanged, the bae band-mode cuent excited by the adiation conducto hae oppoite diection. Afte the phae-diffeence modulation, the baeband-mode adiation ignal of two ymmetic adia tion conducto hae the ame diection. Thu, the gain of the antenna i multiplied ynegitically. Fo the co-polaiza tion cuent, which ae etical to the baeband mode cu ent, the two ymmetic adiation conducto excite identi cal-diection cuent. Afte the phae-diffeence modulation, the two ymmetic adiation conducto inhibit the adiation ignal mutually. Thu, co-polaization i educed, and the antenna gain i inceaed A the fit tanmiion netwok and the econd netwok ae epectiely aanged in diffeent tanmiion netwok aea, the antenna aay of the peent inention i exempted fom the ignal intefeence between the tanmi ion netwok. Thu, the tanmiion efficiency of adiation ignal i inceaed. Futhe, the peent inention implifie tanmiion netwok and hoten the path of the tanmi ion netwok. Theefoe, the olume of the antenna aay of the peent inention i geatly educed Below, the embodiment ae decibed in detail to make the technical content of the peent inention eaily undetood. BRIEF DESCRIPTION OF THE DRAWINGS 0012 FIG. 1 i a pepectie iew chematically howing a Dual Polaized Micotip Patch Antenna Aay fo PCS Bae Station' dicloed in a U.S. Pat. No. 5,923,296; 0013 FIG. 2 i a top iew chematically howing a font ide an antenna aay accoding to a fit embodiment of the peent inention; 0014 FIG. 3 i a top iew chematically howing a ea ide of an antenna aay accoding to the fit embodiment of the peent inention; 0015 FIG. 4 i a top iew chematically howing the tanmiion netwok and the tanmiion netwok aea accoding to the fit embodiment of the peent inention; 0016 FIG. 5 i a ide iew chematically howing an antenna aay accoding to the fit embodiment of the peent inention; 0017 FIG. 6 i a diagam howing the meauement eult of the etun lo of the fit tanmiion netwok accoding to the fit embodiment of the peent inention; 0018 FIG. 7 i a diagam howing the meauement eult of the etun lo of the econd tanmiion netwok accod ing to the fit embodiment of the peent inention; 0019 FIG. 8 i a diagam howing the meauement eult of the adiation patten of the fit tanmiion netwok accoding to the fit embodiment of the peent inention; 0020 FIG. 9 i a diagam howing the meauement eult of the adiation patten of the econd tanmiion netwok accoding to the fit embodiment of the peent inention;

9 US 2011/ A1 Jan. 6, FIG. 10 i a top iew chematically howing a font ide of an antenna aay accoding to a econd embodiment of the peent inention; and 0022 FIG. 11 i a pepectie iew chematically howing that an antenna aay accoding to the econd embodiment of the peent inention i applied to a wiele tanmiion deice. DETAILED DESCRIPTION OF THE INVENTION 0023 FIG. 2 and FIG.3 ae epectiely a top iew and a ea iew of an antenna aay accoding to a fit embodiment of the peent inention. A hown in FIG. 2 the antenna aay of the peent inention compie a pluality of adiation conducto 21, a fit tanmiion netwok 22 and a econd tanmiion netwok 23. Each adiation conducto 21 ha a fit lateal 211 and a econd lateal 212 oppoite to the fit lateal 211. Refeing to FIG. 4, the fit lateal 211 of the adiation conducto 21 ae extended to delineate a fit tan miion netwok aea 24. The econd lateal 212 of the adiation conducto 21 ae extended to delineate a econd tanmiion netwok aea 25. The fit tanmiion netwok aea 24 and the econd tanmiion netwok aea 25 do not oelap Refeing to FIGS. 2, 3, and 4, the adiation conduc to 21 ae aanged on a Subtate 2 to fom a ymmetic aay. The ubtate 2 i aembled to a metal caie boad 6 with non-metallic uppot pilla 4. The metal caie boad 6 function a the gounding plane of the antenna ytem. The fit tanmiion netwok 22 i aanged in the fit tanmi ion netwok aea 24 and ha a fit feede point 221. The fit lateal 211 of the adiation conducto 21 ae connected to fou feed am of the fit tanmiion netwok 22. The adiation conducto 21 and the feed am of the fit tanmi ion netwok 22 contain an included angle of degee. The antenna aay of the peent inention futhe compie a fit feede cable 26. The fit feede cable 26 include a fit cental wie 261 connected to the fit feede point 221 and a fit extenal wie 262 connected to the gounding plane of the antenna ytem The econd tanmiion netwok 23 i aanged in the econd tanmiion netwok aea 25 and ha a econd feede point 231. The econd lateal 212 of the adiation conducto 21 ae connected to fou feed am of the econd tanmiion netwok 23. The adiation conducto 21 and the feed am of the econd tanmiion netwok 23 contain an included angle of degee. The antenna aay of the peent inention futhe compie a econd feede cable 27. The econd feede cable 27 include a econd cental wie 271 connected to the econd feede point 231 and a econd exte nal wie 272 connected to the gounding plane of the antenna ytem In the fit embodiment, the ubtate 2 i a ectangle haing a length of about 180 mm and a width of about 150 mm. The metal caie boad 6 i a ectangle giing a length of 200 mm and a width of 160 mm. The uppot pilla 4 i made of a non-metallic mateial and ha a cylindical hape with a diamete of about 3 mm and a height of about 6 mm. The adiation conducto 21 i a quae haing a length of about 45 mm. The path of the fit tanmiion netwok 22 ha a total length of about 410 mm. The path of the econd tanmiion netwok 23 ha a total length of about 550 mm FIG. 4 i a top iew of the tanmiion netwok and the tanmiion netwok aea accoding to the fit embodiment of the peent inention. The fit tanmiion netwok 22 and the econd tanmiion netwok 23 ae epectiely aanged in the fit tanmiion netwok aea 24 and the econd tanmiion netwok aea 25 without oelap. Theefoe, the peent inention i exempted fom ignal intefeence when ignal ae tanmitted in the tan miion netwok. Futhe, the peent inention ha a imple tuctue than the conentional technology. Thu, the Volume of the antenna aay i geatly educed FIG. 5 i a ide iew of an antenna aay accoding to the fit embodiment of the peent inention. The adiation conducto 21 ae intalled on the ubtate 2 fitly. Then, the ubtate 2 i aembled to the metal caie boad 6 with the non-metallic uppot pilla 4. The metal caie boad 6 i the gounding plane of the antenna ytem. The cental wie of the fit and econd feede cable 26 and 27 ae epectiely connected to the fit feede point 221 and the econd feede point 231. The extenal wie of the fit and econd feede cable 26 and 27 ae connected to the gounding plane of the antenna ytem FIG. 6 i a diagam chematically howing the mea uement eult of the etun lo of the fit tanmiion netwok accoding to the fit embodiment of the peent inention, wheein the hoizontal axi denote the fequency and the etical axi denote db. When an opeation fe quency band S1 of the fit tanmiion netwok i defined to be the fequency ange haing a etun lo geate than 10 db, the opeation fequency band S1 i between 2.4 and 2.7 GHz, which coe the fequency band of the Wimax ytem FIG. 7 i a diagam chematically howing the mea Suement eult of the etun lo of the econd tanmiion netwok accoding to the fit embodiment of the peent inention, wheein the hoizontal axi denote the fequency and the etical axi denote db. When an opeation fe quency band S2 of the econd tanmiion netwok i defined to be the fequency ange haing a etun lo geate than 10 db, the opeation fequency band S2 i between 2.4 and 2.8 GHz, which alo coe the fequency band of the Wimax ytem. FIG. 6 and FIG. 7 how that the opeation fequency band of the antenna ytem of the peent inention hae met the equiement of the antenna deign FIG. 8 i a diagam chematically howing the mea uement eult of the adiation patten of the fit tanmi ion netwok accoding to the fit embodiment of the peent inention, wheein the cental fequency of the adiation pat ten of the antenna ytem ange fom 2500 to 2700 MHz. FIG. 8 how that the maximum peak gain ae all oe dbi FIG. 9 i a diagam chematically howing the mea Suement eult of the adiation patten of the econd tan miion netwok accoding to the fit embodiment of the peent inention, wheein the cental fequency of the adia tion patten of the antenna ytem ange fom 2500 to 2700 MHz. FIG.9 how that the maximum peak gain ae all oe dbi. FIG. 8 and FIG. 9 how that the maximum peak gain of the adiation patten of the peent inention i obi ouly inceaed Theefoe, the peent inention can educe the intefeence on the adiation patten and achiee a highe gain FIG. 10 i a top iew of an antenna aay accoding to a econd embodiment of the peent inention. The econd embodiment i baically imila to the fit embodiment except the fit embodiment ha a 4x4 aay of adiation conducto 21 and the econd embodiment ha a 6x6 aay of

10 US 2011/ A1 Jan. 6, 2011 adiation conducto 21. The configuation of the fit tan miion netwok 22 and the econd tanmiion netwok 23 of the econd embodiment i the ame a that of the fit embodiment. The fit tanmiion netwok aea 24 and the econd tanmiion netwok 25 do not oelap in the econd embodiment eithe. It hould be mentioned heein that no matte what adiation conducto aay an antenna ytem adopt, any peon killed in the at can eaily deign non oelap tanmiion netwok to peent the tanmiion netwok fom mutual intefeence accoding to the piit of the peent inention, and that all the modification and aia tion accoding to the piit of the peent inention hould be alo included within the cope of the peent inention FIG. 11 i a pepectie iew chematically howing an antenna aay accoding to the econd embodiment of the peent inention i applied to a wiele tanmiion deice. When the antenna aay of the peent inention i integated with a wiele tanmiion deice, high-fequency ignal ae fed into the antenna ytem ia two feede cable. Then, the high-fequency ignal ae tanmitted to all the adiation conducto 21 ia the fit feede point 221 and the fit tanmiion netwok 22, and the econd feede point 231 and the econd tanmiion netwok 23. Theeby, wiele ig nal ae tanmitted o eceied The peent inention poee utility, noelty and non-obioune. Theefoe, the peent inention meet the condition fo a patent. It hould be noted heein that the embodiment decibed aboe ae only to exemplify the peent inention but not to limit the cope of the peent inention. Any equialent modification o aiation accoding to the piit of the peent inention i to be alo included within the cope of the peent inention. What i claimed i: 1. An antenna aay compiing a pluality of adiation conducto ymmetically aanged, each haing a fit lateal and a econd lateal, wheein aid fit lateal of aid adiation conducto ae extended to delineate a fit tanmiion netwok aea, and aid econd lateal of aid adiation conducto ae extended to delineate a econd tanmiion netwok aea, a fit tanmiion netwok aanged in aid fit tanmi ion netwok aea and haing a fit feede point, wheein feed am of aid fit tanmiion netwok ae connected to aid fit lateal of aid adiation conduc to; and a econd tanmiion netwok aanged in aid econd tanmiion netwok aea and haing a econd feede point, wheein feed am of aid econd tanmiion netwok ae connected to aid econd lateal of aid adiation conducto. 2. The antenna aay accoding to claim 1 futhe compi ing a fit feede cable, which include a fit cental wie connected to aid fit feede point; and a fit extenal wie connected to a gounding plane of aid antenna aay. 3. The antenna aay accoding to claim 1 futhe compi ing a econd feede cable, which include a econd cental wie connected to aid econd feede point; and a econd extenal wie connected to a gounding plane of aid antenna aay. 4. The antenna aay accoding to claim 1, wheein an included angle i contained by each aid feed am of aid fit tanmiion netwok and aid adiation conducto connected to aid feed am; aid included angle i between 30 and 60 degee. 5. The antenna aay accoding to claim 1, wheein an included angle i contained by each aid feed am of aid econd tanmiion netwok and aid adiation conducto connected to aid feed am; aid included angle i between 30 and 60 degee. 6. The antenna aay accoding to claim 1, wheein aid fit tanmiion netwok and aid econd tanmiion net wok do not oelap.