poster frontends-070624
DESCRIPTION
radio front endsTRANSCRIPT
www.sagax.huwww.sagax.huSagax, Sagax, LtdLtd..
HallerHaller u. 11u. 11--13.13.
1096 Budapest, HUNGARY1096 Budapest, HUNGARY
Frequency extensionFrequency extension
FCUFEUFCUFEUFCUFEU
LO1LO1LO1LO1
FCU
Embeddedcontroller
LO1LO1LO1LO3
FEU
LO1LO1LO1LO2
FCUFEUFCUFEUFCUFEUFCUFEU
RFIN
RFOUT
IFOUT
IFIN
LO1
FCU
LO2
FCU
RFIN
RFOUT
IFOUT
IFIN
FCUFEUFCUFEUFCUFEU
LO1
FCU
LO3
FEU
LO2
RFIN
IFOUT
Performance of the local synthesizers
Frequency extension TX/RX radio front-ends for VHF/UHF range
The main function of the frequency extension radio front-end is the
frequency conversion between the radiated (RF) and digitally
processed (IF) frequency domain
From the universal common structure
specialized font-end tuners could derive
The universal structure is based on a triple-conversion heterodyne
frequency translator with some receive and transmit channels with
independent or phase coherent common local synthesizers and
embedded controller.
Analysis of 4Mcps wideband DSSS signal
using DCU-214 based spectrum analyser
The local frequency
synthesizers of our tuners
are optimized for wide
tinning bandwidth for fast
frequency changing
VHF TX/RX
front-end
UHF multi-channel
RX front-end
Typical frequency settling
time measurement result
(15us time for 2MHz step)
Typical phase noise
measurement result
(-100dBc/Hz @10KHz)
Typical physical implementations
VHF (20-520MHz)
single channel
TX/RX front-end
4 channel coherent
VHF/UHF
(20-3000MHz)
RX front-end
Tuner control software as Windows based GUI UHF (20-3000MHz) single ch. RX Microwave 24GHz) single ch. RX/TX