BEST receiver experience: general architecture, design and integration

Federico Perini, Germano Bianchi, Marco Schiaffino, Jader Monari

INAF-IRA (I)

NF=1.35dB@180MHz, Tn=105K@180MHz

Gain=50dBOIP3= +25 dBm

Opt. Tx. Opt. Rx.

=1310nm NF=36dB Gain=-25dBBW=(0.1-1)GHz, IIP3>+33dBm, Input RL>15dB Output RL>20dB,Power Supply=(12-15)Volt@75mA

NF=0.45dB Tn=32K Gain=60dB BW=16MHz@408MHz OIP3>+33dBm Input RL>15dB Output RL>15dB Power

Supply=10-15Volt@=245mA

IP3 products 10dB under the thermal noise level KTB IIP3 > -60dBmIF=30MHz, OL=378MHzPin_ADCBW=-40/-30dBm (ADC Berkeley)PinKTB=-107dBm (Tb=20K) /-100dBm (Tb=500K) Gain=90dB, GainRX=35dB

RF/IF=110-240MHz Gain=50dB, Dig. Att. 31.5/0.5dBOIP3>+38dBm

IF

Opt. Rx

CarrierBoard

BEST-2408MHz

BEST-3lo 120-240MHz

BEST-3lo receivers box

A 3U / 42Hp subrack equipped with 2 Optical Tx, 2 F.E., 1 uC board and 1 power supply board) mounted inside a waterproof box.

BEST-2 receivers box

1 Front-End and 1 Optical Transmitter mounted inside a waterproof box.

Best-2Opt. Tx.

assembly

BEST-3loOpt. Tx. assembly with anti-vibrations

system

BEST-3loRx board

BEST-3lo RX

BEST-2IF+Rx board

BEST-2IF+Rx subrack

BEST-3loIF+Rx subrack

BEST-2 Front-End BEST-3lo Front-End

Optical fibre

Optical fibre

LO distributor

FM Band stop filter

Low pass (TV stop)

Switchable filter bank:- 110-250MHz - 110-150MHz- 130-160 MHz - 140-180MHz-170-210MHz - 200-225MHz- 200-240MHz - 210- 250MHz

Good repeatability!