very tiny handheld vector network analyzer user guide · user guide gen111.taobao.com ... this...
Post on 15-Feb-2020
4 Views
Preview:
TRANSCRIPT
NanoVNA
Very tiny handheld Vector Network Analyzer
User Guide
gen111.taobao.com
2019-07-11
Overview: We designed NanoVNA based on edy555 (https://twitter.com/edy555), but
modified some circuits, added battery management circuits, and redesigned the
PCB. The PC control software can export Touchstone (snp) files which can be used
for various radio design and simulation software. The improved frequency
algorithm can use the odd harmonic extension of si5351 to support the
measurement frequency up to 900MHz. The metal shield is designed to reduce
the external interference and improve the measurement accuracy. The 50k-
300MHz frequency range of the si5351 direct output provides better than 70dB
dynamic. The extended 300M-600MHz band provides better than 50dB of
dynamics, and the 600M-900M band is better than 40dB of dynamics. is very
tiny handheld Vector Network Analyzer (VNA). It is standalone with lcd display,
portable device with battery. This project aim to provide an RF gadget but useful
instrument for enthusiast.
DIY's vector network analyzer, with reference to the related design of. Designed
with simple and practical PC control software, you can export Touchstone (snp)
files for various radio design and simulation software through PC software.
NanoVNA is an open source hardware project, everyone can be free to clone and
DIY, but we hope you can do more understanding before you do it, there are
some customers reflected that they have bought the low quality nanoVNA from
other sources. We have found some low quality clones on the Internet which
claimed have completed the project. Buying such hardware may be harm on
NanoVNA performance, or leading to measurement error.
We will continue to provide updates and technical support services for NanoVNA
within 3 years after purchase. You can get the latest detail of products and
software updates from the Web Store: gen111.taobao.com.
We provide 5 firmware on the network hard drive, you can choose the
appropriate brush in accordance with the relevant tutorials, 5 firmware
differences are as follows:
nanoVNA_300_ch:50K-300MHz,5*7 Bitmap font,4 tracks
nanoVNA_900_ch:50K-900MHz,5*7 Bitmap font,4 tracks(Default)
nanoVNA_900_aa:50K-900MHz,7*13 Bitmap font,2 tracks (Antenna Analyzer)
The 800MHz firmware works better at higher temperatures.
nanoVNA_800_ch:50K-900MHz,5*7 Bitmap font,4 tracks(Recommended)
nanoVNA_800_aa:50K-900MHz,7*13 Bitmap font,2 tracks (Antenna Analyzer)
Front panel
You can use the USB interface to connect to computer communications or
connect standard 5V charger charging.
When charging the battery indicates that the battery LED flashes in charge, the
constant light indicates full. When discharging the battery LED constant light
indicates normal discharge, LED flicker indicates low power, please connect the
charger in time to charge.
Toggle the power switch can switch the machine, the battery indicates that the
Led needs to be turned off after 40 seconds of shutdown.
The system LED light and dark changes when the system is properly scanned. You
can move the mark Point or perform a menu operation via the multifunctional
switch, use the touchscreen operation directly also.
Main interface
Basic operations: 1. Set the frequency range (STIMULUS>START/STOP or CENTER/SPAN)
2. Calibration (CAL)
3. Select display format and channel (DISPLAY)
4. Save(SAVE)
You can change the display format and channel selection at any time. In the
normal test mode, tap the right area of the screen or press the multifunctional
switch to call up the menu. Tap the screen or turn the multifunctional switch to
select a menu item.
The initial state of NanoVNA (no data is stored in 0)
Scan range: 50KHz ~ 900MHz
Track 1: LOGMAG CH0 (reflection)
Track 2: SMITH CH0 (reflection)
Track 3: LOGMAG CH1 (through )
Track 4: CH1 stage (through )
Mark 1: Activated
Uncalibrated.
We will test before shipment and connect directly to the SMA port for
calibration, the calibration data is stored in state 0, and the boot will load the
status 0 data directly.
Calibration and Normalization: The VNA Master is a field portable unit operating in the rigors of the test
environment. In order to ensure measurement accuracy, RF calibration (OSLT)
must be performed prior to making a measurement in the field. Calibrating with
the specified mechanical calibration requires three loads, open, short, and
match(load). Calibration data is saved as user calibration data. It can be saved to
status 0 and can be automatically loaded at the next boot, It can be also saved
to status 1-4 and can be loaded via the RECALL menu.
Click the CAL→CALIBRATE menu to open the calibration interface, then connect
open, short and load three loads in turn, wait for the screen to stabilize and click
on the menu corresponding to calibrate CH 0. The machine is accompanied by a
calibration piece, for the public head calibration parts inside the needle copper is
short-circuited, the interior with a needle white plastic and stainless steel shell
connected to the (LOAD) 50 ohm load, the internal empty for the open. For the
head calibrator, the back uses solder short circuit for short, welding two 100 ohms
resistor for 50 ohm load, open circuit for open.
Isolation calibration of CH 1 requires two load loads to connect CH0 and CH1,
respectively, to obtain the best isolation, usually with only one set of calibration
loads for port 0, and to connect the load Calibrator to CH1, CH0 to remain open,
and then press the ISOLN menu to calibrate.
Connect the CH0 and CH1 of the analyzer with an optional Through Adapter(SMA
to SMA kit or cable), and then press the THRU menu to calibrate. The
normalization operation moves the measurement reference plane to both ends
of the Through Adapter. This function is only available when the measurement
item is S21.
After the calibration is complete, press the Done button, eject the Save screen to
select the required status to save. Once the calibration is complete, the three
calibrators can be connected to port 0 again, and the correct calibration should
be based on the SMITH chart, which should be: when connected to OPEN, the
curves should be concentrated on the far right of the SMITH chart, and when
connecting SHORT, the curves should be concentrated on the leftmost side of the
SMITH chart, When connecting LOAD, the curves should all be concentrated in
the middle of the SMITH chart. Using RF cables to connect Port 0 and port 1, view
S21 curve errors should not exceed 0.1dB. If calibration data abnormalities are
found, they should be re-calibrated.
Note: If there is already saved calibration data, first press “Reset”
to clear the calibration data and then calibrate!
If the calibration has been applied, CAL status is displayed.
It is hidden in a state that has not been applied. C * is the state in which the
unsaved calibration value is applied (it disappears when the power is turned off).
C0 ~ C4 0 to 4 indicates that a saved calibration value has been applied to one of
the save locations.
SAVE Unsaved
It changes to this state when saving by an operation. Each of the characters shown
below C indicates that the following error terms are applied:
D: Directivity, R: Reflection Tracking, S: Source Match, T: Transmission Tracking, X:
Isolation
Select the display trace and display format: The DISPLAY→TRACE item of the menu can choose to turn the corresponding
display curve on or off, showing that the curve color is consistent with the color
of the interface curve, and the display curve of the final operation is the active
tracking curve, when the menu FORMAT, the SCALE,CHANNEL operation is valid
for the display curve.
The display type can be modified by the DISPLAY→FORMAT of the menu,
DISPLAY→SCALE can adjust the scale, DISPLAY→CHANNEL can select the
measured port.
Setting the frequency range:
The frequency range of a channel can be expressed by three groups of parameters:
Start Frequency, Center Frequency and Stop Frequency. If any of the parameters
change, the others will be adjusted automatically in order to ensure the coupling
relationship among them
fcenter =(fstart +fstop )/2
fspan= fstop- fstart
Where fspan is the span.
Set the center frequency point of the current screen through the
STIMULUS→CENTER of the menu, and display the values of the center frequency
and sweep span, respectively, to the left and right of the bottom of the grid. In
the lower-right corner of the pop-up Settings value screen, click to eject the
soft keyboard and enter the frequency value via the soft keyboard.
Please pay attention to the following points:
The start and stop frequencies will vary with changes to the center frequency
when the span is constant.
In Zero Span, the start frequency, stop frequency and center frequency are always
set to the same value. Now, you can use port 0 as a signal source for a fixed output
amplitude, but it is important to note that this machine uses the clock signal
generator S5351 as the signal source, the output signal is square wave, contains
a larger odd harmonic.
Set the frequency range through the STIMULUS→SPAN of the menu, display the
center frequency and sweep span values on the left and right sides of the grid,
and click on the lower right corner of the pop-up settings value screen to eject
the soft keyboard and enter the frequency values through the soft keyboard.
Please pay attention to the following points:
The start and stop frequency vary with the span when the center frequency is
constant.
When the span is set to the maximum, the analyzer enters full span mode.
In Zero Span, the start frequency, stop frequency and center frequency are always
set to the same value.
Set the start frequency through the STIMULUS→START of the menu and display
the start frequency and stop frequency values on the left and right sides of the
grid, respectively. Click on the bottom right corner of the pop-up settings screen
to eject the soft keyboard and enter the frequency value through the soft
keyboard.
Please pay attention to the following points:
The span and center frequency vary with the start frequency when the Span
does not reach the minimum (The parameters vary with the span, please refer to
“Span”);
In Zero Span, the start frequency, stop frequency and center frequency are
always the same value.
Set the stop frequency through the STIMULUS→STOP of the menu, and display
the start frequency and stop frequency values on the left and right sides of the
grid, respectively, in the lower right corner of the pop-up Settings screen, click
to eject the soft keyboard and enter the frequency value through the soft
keyboard. Please pay attention to the following points:
The span and center frequency vary with the stop frequency. The change of the
span will affect other system parameters. For more details, please refer to
“Span”.
In Zero Span, the start frequency, stop frequency and center frequency are always
the same value.
Menu items: DISPLAY
○ TRACE
■ 0
■ 1
■ 2
■ 3
○ FORMAT
■ LOGMAG
■ PHASE
■ DELAY (Not implemented, computer software provides Group delay functionality)
■ SMITH
■ SWR
■ MORE
■ POLAR
■ LINEAR
○ SCALE
■ SCALE/DIV
■ REFERENCE POSITION
■ ELECTRICAL DELAY
○ CHANNEL
■ CH0 REFLECT
■ CH1 THROUGH
● MARKER
○ SELECT
■ 1
■ 2
■ 3
■ 4
○ MARKER→START
○ MARKER→STOP
○ MARKER→CENTER
○ MARKER→SPAN (Not implemented,)
● STIMULUS
○ STAR
○ STOP
○ CENTER
○ SPAN
○ CW FREQ
● CAL
○ CALIBRATE
■ OPEN
■ SHORT
■ LOAD
■ ISOLN
■ THRU
■ DONE
■ SAVE
○ RESET
○ CORRECTION
● RECALL/SAVE
○ 0 (Default)
○ 1
○ 2
○ 3
○ 4
● CLOSE
Basic performance:
● PCB: 54mm x 85.5mm x 11mm (without connectors, switches)
● Measurement frequency: 50KHz -900MHz
● RF output: -13dbm (maximum -9dbm)
● Measurement range: 70dB (50kHz-300MHz), 50dB (300M-600MHz), 40dB
(600M-900MHz));
● Port SWR: < 1.1
● Display: 2.8 inch TFT (320 x240)
● USB interface: USB type-C communication mode: CDC (serial)
● Power: USB 5V 120mA, built-in 400mAh battery, maximum charging current
0.8A
● Number of scanning points: 101 (fixed)
● Display Tracking: 4, Marking: 4, Setting Save: 5
●Frequency Tolerance:<2.5ppm
●Frequency Stability:<0.5ppm
Packing list
NanoVNA host (with 400mAh battery) x 1
USB Type-C data cable x1
30cm SMA male to male RG174 RF cable x2
SMA male calibration kit (OPEN / SHORT /LOAD) x1
SMA female to female connector x1
Block diagram:
NanoVNA Sharp:
This PC software is designed for control NanoVNA and export Touchstone(snp) files.
A A
B B
C C
D D
E E
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
TITLE:
nanoVNA REV: 3.0
Date: 2019-05-24 Sheet: 1/1
EASYEDA V5.4.12 Drawn By: hugen79
USB_TYPE-C-31-M-12
U1
SBU2B8
CC1A5
DN2B7
DP1A6
DN1A7
DP2B6
SBU1A8
CC2B5
GND A1B12
VBUS A4B9
VBUS B4A9
GND B1A12
GN
D3
GN
D1
GN
D2
GN
D4
STM32F072CBT6U4
PC13 2
PC14 3
PC15 4
NRST 7
PA010
PA111
PA212
PA313
PA414
PA515
PA616
PA717
PA829
PA930
PA1031
PA1132
PA1233
PA1334
PA1437
PA1538
PB0 18
PB1 19
PB2 20
PB3 39
PB4 40
PB5 41
PB6 42
PB7 43
PB8 45
PB9 46
PB10 21
PB11 22
PB12 25
PB13 26
PB14 27
PB15 28
Boot0 44
VDD124
VDD236
VDD348
VDDA9
VBAT 1
VSS123
VSS235
VSS347
VSSA8
OSC_I 5
OSC_O 6
VDD
VDD
USB_DMUSB_DP
USB_DMUSB_DP
BATSD103AWS
D2
NRST
MCLK
K1-1502SASW2
1
T
2
C
VDD
I2S_DOUT
I2S_BCLKI2S_WCLKSD_CSSD_GP2
LCD_CDLCD_CSSPI_MOSISPI_MISOSPI_SCLKSD_GP1Y-X-
X+Y+
DAC_FC
VDD
TMSTCK
LCD_RESET
VDD
SCLSDA
SCLSDA
MCLK
82ΩR9
49.9ΩR10
49.9ΩR11
49.9ΩR12
150ΩR13
56ΩR14
470ΩR16
27ΩR17
390ΩR18
390ΩR19
49.9ΩR20
49.9ΩR21
39ΩR22
39ΩR23100Ω
R2422ΩR25
TLV320AIC3204IRHBRU9
AVDD24
DVDD29
OVIDD6
MCLK/11
BCLK2
WCLK3
SCLKMFP38
LDOIN26
DINMFP14
SCLSSZ9
SDAMOSI10
SPI/SELECT12
IN1/L13
IN1/R14
IN2/L15
IN2/R16
IN3/L20
IN3/R21
LDO/SELECT30
RESET31
GPIOMFP5/3232
EP33
IOVSS7
AVSS17
DVSS28
REF 18
LOL 22
LOR 23
HPR 27
HPL 25
MICBIAS 19
DOUTMFP2 5
MISOMFP4 11
VDD
MCLKI2S_BCLKI2S_WCLK
SCLSDA
I2S_DOUT
I2S_DIN
TFT_2.8_SPI_18pU10
CSCS
D/CD/C
GNDGND
GND2GND2
GND3GND3
GND4GND4
GND5GND5
GND6GND6
LEDLED
RESETRESET
SCKSCK
SDI(MOSI)SDI
SDO(MISO)SDO
VCCVCC3.3V
XNXN
XPXP
YNYN
YPYP
LCD_RESETSPI_SCLK
LCD_CSLCD_CD
SPI_MOSISPI_MISO
VDD
X+Y+
Y-X-
+5V
+5V
+5V
+5V
VDD
2ΩR40
2.2uHL1
22uFC47
4.7uHL3
SA612ADU6
OSC
IN-A1
IN-B2
OUT-A 4
OUT-B 5
76 8
3
SA612ADU7
OSC
IN-A1
IN-B2
OUT-A 4
OUT-B 5
76 8
3
SA612ADU8
OSC
IN-A1
IN-B2
OUT-A 4
OUT-B 5
76 8
3
4.7uHL4
4.7uHL5
NRST
KT-0603RLED1
10KΩR5
100nFC5
100nFC6
100nFC7
100nFC8
1uFC3
1uFC4
10KΩR6
KT-0603RLED2
3.9KΩR7
3.9KΩR8
100nFC37
100nFC34
100nFC35
100nFC36
100nFC22
100nFC23
100nFC24
100nFC25
100nFC26
100nFC27
100nFC43
100nFC21
100nFC20
100nFC19
100nFC39
100nFC41
100nFC18
100nFC17
100nFC16
100nFC15
100nFC14
100nFC13
100pFC44
100pFC42
100pFC40
1nFC28
1nFC29
1nFC30
1nFC31
1nFC32
1nFC33
10KΩR38
10uFC45
10uFC46
10uFC49
300ΩR26
300ΩR27
300ΩR28
300ΩR29
300ΩR30
300ΩR31
15KΩR32
15KΩR33
15KΩR34
15KΩR35
15KΩR36
15KΩR37
100nFC9
100nFC10
100nFC11100nFC12
Si5351A-B-GTU5
VDD1
XA2
XB3
SCL4
SDA5
CLK2 6
VDDO7 GND 8
CLK1 9CLK0 10
TMSTCK
1KR3
1KR2
SMA-KTX
SMA-KRX
BAT
IP5303U2
VIN1
D12
NC/BAT3
D24 KEY 5BAT 6SW 7VOUT 8
EPAD 9
2.54mm 1*2PBAT
12
SK-12D02-VG3SW1
1234 5 XC6206P332MRU3
GND 1
Vin3
Vout 2
10uFC1
ICSRC6508_屏蔽支架S1
11
ICSRC6508_屏蔽支架S2
11
ICSRC6508_屏蔽支架S3
11
ICSRC6508_屏蔽支架S4
11
ICSRC6508_屏蔽支架S5
1 1
ICSRC6508_屏蔽支架S6
1 1
ICSRC6508_屏蔽支架S7
1 1
ICSRC6508_屏蔽支架S8
1 1
ICSRC6508_屏蔽支架S9
1 1 ICSRC6508_屏蔽支架S10
11
77311-462K05LFP2
11
22
33
44
55
RE-H022TD-1190 (LF)(SN)P1
11
22
26MHzY1
AFC/GND1
GND2 OUT 3VCC 4
10R4
100nFC38
top related