north w5hn texas 902 mhz presentations - qsl. · pdf file• paralleling high power 900 mhz...
Post on 26-Mar-2018
224 Views
Preview:
TRANSCRIPT
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 1
902 MHz Presentations
• Getting Started on 902 MHz at W5LUA• Paralleling high power 900 MHz amplifiers by W5LUA• Review of the W1GHz 902 MHz transverter by N5AC• 902 MHz Transverter at KA5BOU• 902 MHz Transverter at NM5M• 902 MHz Transverter at WB5ZDP• 902 MHz W0PW Dual Dipole Feed by WW2R• 902 MHz EME at WA8RJF EN91• DEMI 902 MHz Transverter demo by W5SXD
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 2
The 33 cm Band
• 902 to 928 MHz• Weak signal work at 902.0 to 902.5 MHz and at 903 to
903.5 MHz east of the Mississippi River• Weak signal calling frequency for us is 902.1 MHz• Shared with Part 15 and ISM on a non-interfering basis -
Bull• No commercial store bought radios available for SSB
and CW• Build or buy a transverter to go with your multimode 2M
radio or HF transceiver• Antennas – both loop yagis and standard yagi design
available including some pretty simple antennas by KentWA5VJB
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 3
WB5LUA 902 MHz Transverter
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 4
758 MHz LO
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 5
758 MHz LO Parts List
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 6
WB5LUA 902 MHz Transverter
Built 1987
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 7
WB5LUA 902 MHz Transverter
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 8
Band Pass Filters for 902 MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 9
Components for 902 MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 10
N5QGH 902 MHz Transverterusing old KK7B no tune transverter
Approach
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 11
W5LUA 902 MHz ATF-36077 LNA
Reference AvagoAp Note 1128
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 12
WW2R 902 MHz Transverter
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 13
902 MHz PA Module
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 14
DEMI 902 MHz Transverter
DEMI Demo by W5SXD
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 15
NM5M’s 902 MHz XVTR
51 MHz
460 MHzSAW Filter
Pass 1.8-1.9 GHz
MAR (?)
2:1Divider
902 MHzSAW
FILTERLNA
25 dB Gain
445 MHz IF INTX
445 MHz IFOUT RX
+12 dBm
902 AMMO CAN TRANSVERTER
INA 10386MMIC AMP
902 MHzSAW
FILTER
SBL 1XMini Circuits
SBL 1XMini Circuits
ERA 3
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 16
NM5M’s 902 MHz XVTR
TTL OSCTIMES9 MULT
460 MHz SAWFILTER
TX MIXER
902 MHzFILTER
LNA
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 17
NM5M’s 902 MHz XVTR
LNA
MIXER IF AMP
IF SWITCH
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 18
WB5ZDP 902 MHz Transverter
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 19
W1GHZ 902 MHz Transverter
• Inexpensive 2 board approach providinglow power and moderate NF
• http://www.w1ghz.org/MBT/902_MHz_Transverter_for_the_Multiband_Rover.pdf
• Group Buy?
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 20
150 Watt Motorola SSPAModel STF2520A
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 21
300 Watt Motorola SSPAModel SGTF 1038A
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 22
1 Watt Low Level LevelingAmplifier Model STF 2540A
This unit is the same form factor as the 150 watt and 300 watts SSPAs – Buyer be aware!
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 23
Motorola 150 W and 300 WSSPAs
• www.vhfsouth.com modifications perKD5FZX on both 150W and 300W SSPAs
• Article by N5AC
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 24
W5LUA Pair 300W SSPA
50 Amp meters and shunts available from www.allelectronics.com$12 / meter and $12 / shunt
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 25
Back View SSPA
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 26
Close-Up Power Dividers
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 27
Paralleling two 300 Watt SSPAs atWA8RJF using 90 Degree Hybrid
Couplers
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 28
Showing Method of Attachmentof 24V and PTT at WA8RJF
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 29
SMA 90 Degree Hybrid Couplers
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 30
Anaren 10014-3 .5 to 1 GHz3dB 90o Hybrid
0.6 0.7 0.8 0.9 1.0 1.1 1.20.5 1.3
-3
-8
0
freq, GHz
dB(S
(2,1
))
m2
dB(S
(4,3
))
m1
m1freq=dB(S(4,3))=-3.078
900.0MHzm2freq=dB(S(2,1))=-3.284
900.0MHz
0.6 0.7 0.8 0.9 1.0 1.1 1.20.5 1.3
-17.0
-16.5
-16.0
-15.5
-15.0
-17.5
-14.5
freq, GHz
dB(S
(6,5
))
m3
m3freq=dB(S(6,5))=-17.104
900.0MHz
0.6 0.8 1.0 1.2 1.40.4 1.6
-100
0
100
-200
200
freq, GHz
phas
e(S
(2,1
))
m5
phas
e(S
(4,3
))
m4
m4freq=phase(S(4,3))=160.120
900.0MHzm5freq=phase(S(2,1))=-109.070
900.0MHzPort 2-109o
Port 3160.1o
Port 4
Port 3Port 2
1
4 3
2
Difference = 160.1--109=269.1 – 360 =-90.9
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 31
MECA 900 MHz 3dB 90o Hybrid
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 32
MECA 900 MHz 3dB 90o Hybrid
0.6 0.7 0.8 0.9 1.0 1.1 1.20.5 1.3
-6
-4
-2
-8
0
freq, GHz
dB(S
(2,1
))
m2
dB(S
(4,3
))
m1
m1freq=dB(S(4,3))=-3.024
900.0MHzm2freq=dB(S(2,1))=-3.133
900.0MHz
0.6 0.7 0.8 0.9 1.0 1.1 1.20.5 1.3
-17.0
-16.5
-16.0
-15.5
-15.0
-17.5
-14.5
freq, GHz
dB
(S(6
,5))
m3
m3freq=dB(S(6,5))=-17.104
900.0MHz
0.6 0.8 1.0 1.2 1.40.4 1.6
-100
0
100
-200
200
freq, GHz
pha
se(S
(2,1
)) m5
pha
se(S
(4,3
))
m4
m4freq=phase(S(4,3))=127.700
900.0MHzm5freq=phase(S(2,1))=36.733
900.0MHz
Port 2 Port 3
2
3
1
4
Port 4
Input
Port 3127.7o
Port 236.7o Difference = 127.7-36.7=91o
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 33
ADS Coupler Simulation
SSUBSSub1
TanD=0Cond=1.0E+50T=31 milB=500 milMur=1Er=1
SSub
S_ParamSP1
Step=0.01 GHzStop=1.5 GHzStart=0.5 GHz
S-PARAMETERS
TermTerm2
Z=50 OhmNum=2
TermTerm3
Z=50 OhmNum=3
TermTerm4
Z=50 OhmNum=4
SBCLINCLin2
L=3310 milS=37 milW=180 milSubst="SSub1"
TermTerm1
Z=50 OhmNum=1
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 34
MECA 900 MHz 3dB 90o HybridADS Simulation
Directivity = Isolation – Coupling =16.7dB – 3.2dB = 13.5dB not toospectacular but may not be tooimportant since we are not trying toaccurately measure return loss butrather just combine amplifiers
Coupled port leads by 90 degreesOr direct port lags by 90 degrees
Direct Port
Coupled Port
m2freq=dB(S(4,1))=-16.718
900.0MHz
m1freq=dB(S(3,1))=-3.208
900.0MHzm5freq=dB(S(2,1))=-3.191
900.0MHz
0.7 0.9 1.1 1.30.5 1.5
-15
-10
-5
-20
0
freq, GHz
dB(S
(4,1
))
m2dB(S
(2,1
))
m5
dB(S
(3,1
))
m1
m2freq=dB(S(4,1))=-16.718
900.0MHz
m1freq=dB(S(3,1))=-3.208
900.0MHzm5freq=dB(S(2,1))=-3.191
900.0MHzm4freq=phase(S(3,1))=-0.571
900.0MHzm3freq=phase(S(2,1))=-90.624
900.0MHz
0.6 0.8 1.0 1.2 1.40.4 1.6
-100
-50
0
-150
50
freq, GHz
phas
e(S
(3,1
))
m4
phas
e(S
(2,1
))
m3
m4freq=phase(S(3,1))=-0.571
900.0MHzm3freq=phase(S(2,1))=-90.624
900.0MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 35
Broad band Response of theIdeal 90 Degree Hybrid
Amplitude response repeats at 3fo, 5fo, 7fo, etc.Phase difference remains constant at 90 degrees regardless of frequency!In reality discontinuities and parasitics can create imbalances
Also known as a “Backward Wave” Coupler
m2freq=dB(S(4,1))=-16.718
900.0MHz
m1freq=dB(S(3,1))=-3.208
900.0MHzm5freq=dB(S(2,1))=-3.191
900.0MHz
1 2 3 4 5 60 7
-60
-40
-20
-80
0
freq, GHz
dB(S
(4,1
))
m2
dB(S
(2,1
))
m5
dB(S
(3,1
))
m1
m2freq=dB(S(4,1))=-16.718
900.0MHz
m1freq=dB(S(3,1))=-3.208
900.0MHzm5freq=dB(S(2,1))=-3.191
900.0MHz
m4freq=phase(S(3,1))=-0.571
900.0MHzm3freq=phase(S(2,1))=-90.624
900.0MHz
1 2 3 4 5 60 7
-100
0
100
-200
200
freq, GHz
phas
e(S
(3,1
))
m4
phas
e(S
(2,1
))
m3
m4freq=phase(S(3,1))=-0.571
900.0MHzm3freq=phase(S(2,1))=-90.624
900.0MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 36
Cascade of 2 couplers
0.7 0 .9 1 .1 1 .30 .5 1 .5
-60
-40
-20
-80
0
freq, G H z
dB(S
(4,1
)) m 2
dB(S
(2,1
))
m 5
dB(S
(3,1
))
m 1
m 2freq=dB(S(4 ,1 ))= -38 .510
900 .0M H z
m 1freq=dB(S(3 ,1 ))= -28 .191
900 .0M H zm 5freq=dB(S(2 ,1 ))= -0 .393
900 .0M H z
TermTerm2
Z=50 OhmNum=2
TermTerm3
Z=50 OhmNum=3
TermTerm4
Z=50 OhmNum=4
SBCLINCLin3
L=3310 milS=37 milW=180 milSubst="SSub1"
SBCLINCLin2
L=3310 milS=37 milW=180 milSubst="SSub1"
TermTerm1
Z=50 OhmNum=1
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 37
Cascade of 2 couplers with OpenCircuit on one Port1
Through Loss = 6.5 dBPower at isolated portdown only 6.5 dB,need 50 ohm load thatcan handle this at leasttemporarilly. Inaddition some power isalso available at the“other” output port ofthe coupler – none ofthis is very good!
0.7 0.9 1.1 1.30.5 1.5
-8
-6
-4
-2
-10
0
freq, GHz
dB(S
(4,1
))
m2
dB(S
(2,1
))
m5
dB(S
(3,1
))
m1
m2freq=dB(S(4,1))=-6.522
900.0MHz
m1freq=dB(S(3,1))=-9.502
900.0MHzm5freq=dB(S(2,1))=-6.522
900.0MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 38
Cascade of 2 couplers with 1 and3 dB attenuators in one path
0.7 0.9 1.1 1.30.5 1.5
-30
-20
-10
-40
0
freq, GHz
dB(S
(4,1
))
m2
dB(S
(2,1
))
m5
dB(S
(3,1
)) m1
m2freq=dB(S(4,1))=-27.219
900.0MHz
m1freq=dB(S(3,1))=-18.343
900.0MHzm5freq=dB(S(2,1))=-1.741
900.0MHz
0.7 0.9 1.1 1.30.5 1.5
-40
-30
-20
-10
-50
0
freq, GHz
dB
(S(4
,1))
m2
dB
(S(2
,1))
m5
dB
(S(3
,1))
m1
m2freq=dB(S(4,1))=-32.051
900.0MHz
m1freq=dB(S(3,1))=-33.422
900.0MHzm5freq=dB(S(2,1))=-0.873
900.0MHz
1 dB 3 dB
AttenuatorATTEN1
VSWR=1Loss=1dB
SBCLINCLin3
L=3310milS=37milW=180milSubst="SSub1"
TermTerm2
Z=50OhmNum=2
TermTerm3
Z=50OhmNum=3
TermTerm4
Z=50OhmNum=4
SBCLINCLin2
L=3310milS=37milW=180milSubst="SSub1"
TermTerm1
Z=50OhmNum=1
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 39
Cascade of 2 couplers with 10 and45 degree offset in one path
0.7 0.9 1.1 1.30.5 1.5
-30
-20
-10
-40
0
freq, GHz
dB(S
(4,1
))
m2dB(S
(2,1
))
m5
dB(S
(3,1
)) m1
m2freq=dB(S(4,1))=-31.472
900.0MHz
m1freq=dB(S(3,1))=-19.919
900.0MHzm5freq=dB(S(2,1))=-0.429
900.0MHz
10 degree offset
0.7 0.9 1.1 1.30.5 1.5
-30
-20
-10
-40
0
freq, GHz
dB(S
(4,1
))
m2
dB(S
(2,1
))
m5
dB(S
(3,1
))
m1
m2freq=dB(S(4,1))=-20.145
900.0MHz
m1freq=dB(S(3,1))=-7.941
900.0MHzm5freq=dB(S(2,1))=-1.137
900.0MHz
45 degree offset
TLINTL5
F=.9GHzE=45Z=50.0Ohm
SBCLINCLin3
L=3310milS=37milW=180milSubst="SSub1"
TermTerm2
Z=50OhmNum=2
TermTerm3
Z=50OhmNum=3
TermTerm4
Z=50OhmNum=4
SBCLINCLin2
L=3310milS=37milW=180milSubst="SSub1"
TermTerm1
Z=50OhmNum=1
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 40
Single coupler with both outputsopen circuited
All power is reflectedback to port 4.Termination on port 4must be capable ofhanding the entireavailable driver power.
0.6 0.8 1.0 1.2 1.40.4 1.6
-12
-10
-8
-6
-4
-2
-14
0
freq, GHz
dB(S
(4,1
))
m2
m2freq=dB(S(4,1))=-0.597
900.0MHz
SBCLINCLin2
L=3310milS=137milW=180milSubst="SSub1"
TermTerm4
Z=50OhmNum=4
TermTerm1
Z=50OhmNum=1
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 41
Optimizing Power Output
Best solution is to adjustamplitude and phase to keepcurrent drawn by each ampas equal as possible whenamps are driven to full power
Try flipping hybrids
Add some line length
Adjust load on output couplerisolated port
Each amp has some form ofadjustable attenuator on itsinput
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 42
W0PW EIA Dual Dipole Feed
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 43
W0PW EIA Dual Dipole Feed
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 44
902 MHz W0PW EIA Dual DipoleFeed @ W5LUA
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 45
WA8RJF 3M Dish on 902 MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 46
Dual Dipole Feed for 902 MHzBuilt by WW2R
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 47
Side View of Dual Dipole Feed
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 48
Return Loss of 902 MHz DualDipole Feed
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 49
WW2R 3M Dish on 902 MHz
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 50
902 MHz Feed at WW2R
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 51
Waterproofing Feed at WW2R
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 52
Summary
• Questions?• Group buys?
top related