![]() The antenna’s specified frequency range for the lower band is between 600 MHz to 960 MHz. The first set of measurements are done between 500 MHz and 1.1 GHz. In addition to measuring using the LiteVNA as standalone, I also hooked it up to the computer and used NanoVNA saver to measure the same range. Using the LiteVNA, I measured the 600 MHz to 6 GHz cross-polarized 4×4 panel antenna I reviewed last time. It is a 23.5 MHz to 6 GHz fractional integer-N synthesizer and VCO. ![]() ![]() I suspect there are more of these 8641 RF switches on the board, but I did not remove any of the shielding cans to verify as they are soldered on.īetween the two shielding cans for S11 and S21 ports, there is a 2871E. In the picture to the right below there is a GS8722 rail-to-rail opamp and below the opamp there is an 8641 RF switch (SP4T) for switching the signal paths. This arrangement is again very similar to that in the NanoVNA-F V2. ![]() The same chip is also used in the NanoVNA-F V2. In the picture to the left below, you can see an MS5351M I2C CMOS clock generator chip. The MCU used is a AT32F403 ARM Cortex M4F by ArteryTek. The inclusion of a microSD slot is certainly a welcome feature as it can be used to store screenshots during measurements.īelow, you can see the touch screen controller HR2046. This design makes it easy to debug/troubleshoot. Also note that all the header connections had been routed to the edge of the board. But the build quality looks quite decent.Īs can be seen in the picture to the left below, the touch screen included uses 4 wire resistive sensing. Unlike the NanoVNA-F V2 which is enclosed in a metal case, the LiteVNA comes in a plastic case with no additional shielding. Besides LCD screen sizes (2.8 inch for the 62 model versus 3.95 inch for the 64 model) and battery capacities (1.3 Ah for the 62 model versus 2 Ah for the 64 model), all other technical aspects are identical. LiteVNA current has two versions: LiteVNA 62 and LiteVNA 64. One of the key differences between the LiteVNA and the NanoVNA-F V2 is that LiteVNA has a frequency range from 50 kHz all the way to 6.3 GHz which essentially doubled the frequency range of the NanoVNA-F V2. This time let’s take a look at a LiteVNA vector network analyzer. In a previous post, I did a teardown of a NanoVNA-F V2.
0 Comments
Leave a Reply. |