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spe - 13 - 8 - 041 /b /rc page 1 of 25 s pecification patent pending part no. : dta d . 01 .a.50 product name : compact evaluation boards for evolution dta.01 .a digital tunable antenna f or 4 g and 3 g cellular applications feature : complete reference design increases antenna efficiency from ~ 7% to ~28 % perfect for smaller ground plane sizes down to 50 x45 mm enables better transmission and reception for 4 g and 3 g usb controlling interface sma(f) connector for antenna measurement rohs compliant
spe - 13 - 8 - 041 /b /rc page 2 of 25 1. introduction the dtad.01.a.50 is a n evaluation board for taoglas new patent pending series of evolution dta tunable antenna s . dta antennas deliver higher efficiency on smaller gr ound - plane than traditional passive antennas, enabling a new miniaturized generation of high performance wireless devices. typical applications would be 3g on board diagnostic (obdii) devices in automotive , m edical telemetry devices , 4g dongles, access poi nts and routers. the board contains a surface - mount ceramic antenna dta . 01 , a tunable capacitor pe64102 dune? (32 state capacitance) from p eregrine semiconductor and a matching circuit . via a usb connection to the board, the antenna frequency response is shifted via a command from a pc with peregrine supplied software and driver . the antenna parameters itself can be measured via the on - board sma connector. a new generation of m2m devices with as little as a 50mm ground - plan e in length can now achieve wide frequency coverage and higher data rates with large bandwidt h for a passive antenna with the same footprint and volume . t h e dtad.01.a.50 board ( 60 .50x45 mm) with ground plane size of 50x45 mm can perform efficiently at a bandwidth from 698 - 960 mhz and fro m 1710 - 2 170 mhz, covering all worldwide cellular 4 g/ 3 g bands in a tiny form factor. i n combination with your device's microprocessor it has the ability to dynamically improve the efficiency of a given antenna b and in real time. using a combination of the dta.01 and the pe64102 we can cover the entire bandwidth for 4 g and 3 g cellular bands. u sing the state 03 (2.58 pf) we can cover the 700 /850/1800/1900 and 2100 mhz band only and with the state 13 (6.52) pf we can cover a penta - band so lution 850/900/1800/19 00 and 210 0 mhz. the optimal states will change depending on the ground - plane , device's board and mechanical environment .
spe - 13 - 8 - 041 /b /rc page 3 of 25 please download the peregrine's full set of support information . see our full links in the appendix at the end of the document . the dtad01 board with a ground pl ane of 50x45 mm has not been designed with the intention of passing the cellular carrier's minimum requirements. the integration is to achieve the maximum performance possible in the smallest form factor.
spe - 13 - 8 - 041 /b /rc page 4 of 25 2. specification electrical state state 03 (2.58pf) state 13 (6.52 pf) band (mhz) 700 850 900 1800 1900 2100 return loss (db) - 7 - 11 - 11 - 13 - 14 - 8 efficiency (%) 26 28 27 60 55 48 average gain (db) - 5.5 - 5.3 - 5.4 - 2.2 - 2.8 - 2.9 peak gain (dbi) 1.3 1.8 1.8 2.5 2.5 2 .2 impedance 50 ? ground size 50x45 mm board size 60 .50x45 mm radiation pattern omni - directional input power 26 dbm max mechanical antenna dimension 40x6x5 mm board dimension 60.50x45 x1.57 mm weight 20 g connector sma - female * based 50x45 mm grou nd plane size , on sta te 03 and state 13 respectively. ** for more detailed information please see the graphs below.
spe - 13 - 8 - 041 /b /rc page 5 of 25 2.1. lte bands covered in state 3 lte bands band number lte / lte - advanced / wcdma / hspa / hspa+ / td - scdma uplink downlink cover ed 1 ul: 1920 to 1980 dl: 2110 to 2170 ? 2 ul: 1850 to 1910 dl: 1930 to 1990 ? 3 ul: 1710 to 1785 dl: 1805 to 1880 ? 4 ul: 1710 to 1755 dl: 2110 to 2155 ? 5 ul: 824 to 849 dl: 869 to 894 ? 7 ul: 2500 to 2570 dl:2620 to 2690 ? 8 ul: 880 to 915 dl: 92 5 to 960 ? 9 ul: 1749.9 to 1784.9 dl: 1844.9 to 1879.9 ? 11 ul: 1427.9 to 1447.9 dl: 1475.9 to 1495.9 ? 12 ul: 699 to 716 dl: 729 to 746 ? 13 ul: 777 to 787 dl: 746 to 756 ? 14 ul: 788 to 798 dl: 758 to 768 ? 17 ul: 704 to 716 dl: 734 to 746 (lte onl y) ? 18 ul: 815 to 830 dl: 860 to 875 (let only) ? 19 ul: 830 to 845 dl: 875 to 890 ? 20 ul: 832 to 862 dl: 791 to 821 ? 21 ul: 1447.9 to 1462.9 dl: 1495.9 to 1510.9 ? 22 ul: 3410 to 3490 dl: 3510 to 3590 ? 23 ul:2000 to 2020 dl: 2180 to 2200 (lte on ly) ? 24 ul:1625.5 to 1660.5 dl: 1525 to 1559 (lte only) ? 25 ul: 1850 to 1915 dl: 1930 to 1995 ? 26 ul: 814 to 849 dl: 859 to 894 ? 27 ul: 807 to 824 dl: 852 to 869 (lte only) ? 28 ul: 703 to 748 dl: 758 to 803 (lte only) ? 29 ul: - dl: 717 to 728 ( lte only) ? 30 ul: 2305 to 2315 dl: 2350 to 2360 (lte only) ? 31 ul: 452.5 to 457.5 dl: 462.5 to 467.5 (lte only) ? 32 ul: - dl: 1452 - 1496 ? 35 1850 to 1910 ? 38 2570 to 2620 ? 39 1880 to 1920 ? 40 2300 to 2400 ? 41 2496 to 2690 ? 42 3400 to 360 0 ? 43 3600 to 3800 ? *covered bands represent an efficiency greater than 20%
spe - 13 - 8 - 041 /b /rc page 6 of 25 2.2. lte bands covered in state 13 lte bands band number lte / lte - advanced / wcdma / hspa / hspa+ / td - scdma uplink downlink covered 1 ul: 1920 to 1980 dl: 2110 to 2170 ? 2 ul: 1850 to 1910 dl: 1930 to 1990 ? 3 ul: 1710 to 1785 dl: 1805 to 1880 ? 4 ul: 1710 to 1755 dl: 2110 to 2155 ? 5 ul: 824 to 849 dl: 869 to 894 ? 7 ul: 2500 to 2570 dl:2620 to 2690 ? 8 ul: 880 to 915 dl: 925 to 960 ? 9 ul: 1749.9 to 1784.9 dl: 1844 .9 to 1879.9 ? 11 ul: 1427.9 to 1447.9 dl: 1475.9 to 1495.9 ? 12 ul: 699 to 716 dl: 729 to 746 ? 13 ul: 777 to 787 dl: 746 to 756 ? 14 ul: 788 to 798 dl: 758 to 768 ? 17 ul: 704 to 716 dl: 734 to 746 (lte only) ? 18 ul: 815 to 830 dl: 860 to 875 (let only) ? 19 ul: 830 to 845 dl: 875 to 890 ? 20 ul: 832 to 862 dl: 791 to 821 ? 21 ul: 1447.9 to 1462.9 dl: 1495.9 to 1510.9 ? 22 ul: 3410 to 3490 dl: 3510 to 3590 ? 23 ul:2000 to 2020 dl: 2180 to 2200 (lte only) ? 24 ul:1625.5 to 1660.5 dl: 1525 to 1 559 (lte only) ? 25 ul: 1850 to 1915 dl: 1930 to 1995 ? 26 ul: 814 to 849 dl: 859 to 894 ? 27 ul: 807 to 824 dl: 852 to 869 (lte only) ? 28 ul: 703 to 748 dl: 758 to 803 (lte only) ? 29 ul: - dl: 717 to 728 (lte only) ? 30 ul: 2305 to 2315 dl: 2350 t o 2360 (lte only) ? 31 ul: 452.5 to 457.5 dl: 462.5 to 467.5 (lte only) ? 32 ul: - dl: 1452 - 1496 ? 35 1850 to 1910 ? 38 2570 to 2620 ? 39 1880 to 1920 ? 40 2300 to 2400 ? 41 2496 to 2690 ? 42 3400 to 3600 ? 43 3600 to 3800 ? *covered bands repr esent an efficiency greater than 20%
spe - 13 - 8 - 041 /b /rc page 7 of 25 3. antenna setup figure 1. impedance test. figure 2. over the air test x y z
spe - 13 - 8 - 041 /b /rc page 8 of 25 4. antenna parameters 4.1. return loss figure 3. return loss of dta . 01 . 4.2. efficiency figure 4. efficiency of the dta . 01 antenna.
spe - 13 - 8 - 041 /b /rc page 9 of 25 4.3. peak gain fi gure 5 . peak gain of d ta . 01 antenna. 4.4. average gain figure 6. average gain of dta . 01 antenna.
spe - 13 - 8 - 041 /b /rc page 10 of 25 5. comparison performance figure 7. return loss comparison of dta . 01 vs. pa . 710 antenn a , with 50x45mm ground plane. figure 8. return loss comparison of dta . 01 vs. pa . 710 antenna , with 50x45mm ground plane.
spe - 13 - 8 - 041 /b /rc page 11 of 25 6. antenna radiation patterns figure 9 . radia tion pattern at 750 mhz, state 3 . figure 10 . radiat ion pattern at 849 mhz, state 13 . figure 11 . radiat ion pattern at 915 mhz, state 13 . f igure 1 2 . rad iation patter n at 1850 mhz, stat e 13 . figure 1 3 . radiation patter n at 1950 mhz, state 13. figure 1 4 . radiation patter n at 2140 mhz, state 13.
spe - 13 - 8 - 041 /b /rc page 12 of 25 7. matching circuit the antenna matching for a ground plane of 50x 45 mm is a combination of capacitors a nd inductors as follows; figure 1 5 . antenna matching. inductor outside of ground plane l1 = reserved for later use if required series elements s1 = 0 ohm, s2 =10 pf, s3 =0.5 nh, s4 =0.5 nh , parallel elements p1 = 47 nh, p2 = 6.2 nh, p3 = 1 pf , p4 =3.9nh fi gure 1 6 . lumped component spaces .
spe - 13 - 8 - 041 /b /rc page 13 of 25 8. transmission line figure 1 7 . co - planar waveguide (cpw). follow the below transmission line dimensions for optimal performance , other cpw (co - planar waveguide) can be used as long as follows rf best practices. dimensi ons w = 0.8 mm , g = 0.3 mm , h = 2 1 mils, t = .036 mm dielectric constant er = 4.4 the dimension of the ground aside of the signal track (a), must be at least 3 times the width (w) . f or those case s where the transmission line have to be curve d , b ent or c lose to the board's edge , the 3xw relation to each side of the signal track needs to be followed. in order to maintain the proposed co - planar waveguide (cpw) design, the height from first middle layer (ground) to the top layer, must be 2 1 mils +/ - 1 10%. the computation of the above values gives an impedance of 49.8 3 ohms.
spe - 13 - 8 - 041 /b /rc page 14 of 25 9. drawing s figure 1 8 . board size.
spe - 13 - 8 - 041 /b /rc page 15 of 25 figure 1 9 . antenna layout . figure 20 . s older a re a for the antenna .
spe - 13 - 8 - 041 /b /rc page 16 of 25 figure 21. bottom layout. at the bottom layer we need to add a porti on of ground plane underneath the antenna, this portion measures 10x10.5 mm and is centered to the signal track of the transmission line at the top layers (5 mm to each side).
spe - 13 - 8 - 041 /b /rc page 17 of 25 figure 2 2 . re commended layout of the pe64102 for the solder p ads of the pe6 4 102 and the lumped components please check their respective specifications. we recommend 0402 size parts . (see the appendix)
spe - 13 - 8 - 041 /b /rc page 18 of 25 10. schematics figure 2 3 . usb interface and power supply.
spe - 13 - 8 - 041 /b /rc page 19 of 25 figure 2 4 . usb to spi converter. figure 2 5 . ma tchi ng circuit, pe64102 and dta01 antenna.
spe - 13 - 8 - 041 /b /rc page 20 of 25 11. gerbers figure 2 6 . dta01 top layer (ground - components).
spe - 13 - 8 - 041 /b /rc page 21 of 25 figure 2 7 . dta01 first middle layer (ground - signal)
spe - 13 - 8 - 041 /b /rc page 22 of 25 figure 2 8 . dta01 second middle layer (ground - signal - power)
spe - 13 - 8 - 041 /b /rc page 23 of 25 figure 2 9 . dta01 bo ttom layer (ground - components )
spe - 13 - 8 - 041 /b /rc page 24 of 25 12. bill of materials comment pattern quantity components provider provider part manufactur er manufacturer part 0.1pf capacitor 0402 1 c1 digikey 490 - 6259 - 2 - nd murata grm1555c1hr10wa01d 1uf capacitor 0402 2 c2, c6 digikey 490 - 3890 - 1 - nd murata grm155r61a105ke15d 10nf capacitor 0402 2 c3, c7 digikey 490 - 1312 - 1 - nd murata grm155r71e103ka01d 10uf capacitor 0603 1 c4 digikey 490 - 3896 - 1 - nd murata grm188r60j106me47d 33pf capacitor 0402 3 c5, c9, c10 digikey 490 - 6177 - 1 - nd murata grm1555c1e330ja01d 2.2uf capacitor 0402 1 c8 digikey 490 - 4518 - 1 - nd murata grm155r60g225me15d 100nf capacitor 0402 1 c11 digikey 490 - 1318 - 1 - nd murata grm155r61a104ka01d 0 ohm resistor 0402 1 s1 digikey p0.0jct - nd panasonic erj - 2ge0r00x 10pf capacitor 040 2 1 s2 digikey 490 - 5921 - 1 - nd murata grm1555c1h100ja01d 0.5n h inductor 0402 2 s3, s4 digikey 445 - 6306 - 1 - nd tdk mlg1005s0n5c 47nh in ductor 0402 1 p1 digikey 490 - 6820 - 1 - nd murata lqw15an47nh00d 6.2nh inductor 0402 1 p2 digikey 490 - 2620 - 1 - nd murata lqg15hs6n2s02d 1pf ca pacitor 0402 1 p3 digikey 490 - 3083 - 1 - nd murata gjm1555c1h1r0cb0 1d 3.9nh inductor 0402 1 p4 digikey 490 - 2617 - 1 - nd murata lqg15hs3n9s02d 5k resistor 0603 2 r1, r2 digikey rr08p4.99kdct - nd susumu rr0816p - 4991 - d - 68h 570 resistor 0603 1 r3 digikey rr08p560dct - nd susumu rr0816p - 561 - d 100k resistor 0402 1 r4 digikey rr08p100kdct - nd susumu rr0816p - 104 - d ferrite 0603 2 l3, l4 digikey 490 - 5208 - 1 - nd murata blm18bb470sn1d pe64102 smt 1 u1 digikey 1046 - 1066 - 1 - nd peregrine pe64102mlaa - z ic_ft232rl 28 - ssop 1 u2 digikey 768 - 1007 - 1 - nd ftdi ft232rl - reel lp2985aim5 - 2.8 sot - 23 - 5 1 u3 digikey lp2985aim5 - 2.8/nopbct - nd ti lp2985aim5 - 2.8/nopb lp2985aim5 - 1.8 sot - 23 - 5 1 u4 digikey lp2985aim5 - 1.8/nopbct - nd ti lp2985aim5 - 1.8/nopb lg q971 - kn - 1 0603 1 d1 digikey 475 - 1409 - 1 - nd osram lg q971 - kn - 1 dlp11sn900hl2l 0504 1 dlp1 mouser dlp11sn900hl2l murata 81 - dlp11sn900hl2l pa710.a smt 1 ant1 digikey pa.720.a taoglas pa.720.a sma female flange 1 con 1 digikey 931 - 1179 - nd taoglas pcb.smafst.2h.b.ht usb a single s mt usb/sm 2.5 - 4h4 1 usb/conn mouser 855 - m701 - 280442 harwin m701 - 280442
spe - 13 - 8 - 041 /b /rc page 25 of 25 13. a ppendix product overview peregrine pe64102 http://www.psemi.com/pdf/sell_sheet - ps g/73 - 0039.pdf datasheet peregrine pe64102 http://www.psemi.com/pdf/datasheets/pe64102_70 - 0428 - 01.pdf application note peregrine pe64102 http://www.psemi.com/pdf/app_notes/an29.pdf design files for the dtad01 http://taoglas.com/files/dtad01 - design - files.zip software and driver for the dtad01 http://taoglas.com/files/dtad01 - eval - board - software.zip taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. taoglas reserves all rights to this document and the information contained herein. reproduction, use or disclosure to third parties without express permission is stric tly prohibited. copyright ? taoglas ltd.

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