DUAL ACFT EQUIP PROBS MALFUNCTIONS IN AN A-320 AFTER A 'FIRM' TOUCHDOWN EXPERIENCE. GAR EXECUTED.

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IN LNDG FLARE EXPERIENCED WIND SHEAR REQUIRING REJECTED LNDG. ACFT MAIN GEAR CONTACTED RWY SURFACE DURING REJECT. NO DAMAGE TO ACFT. HOWEVER WE SUFFERED A LOSS OF 1 BRAKE SYS (THEY ARE VERY FINICKY) AND 1 RADIO MGMNT PANEL STOPPED WORKING. THIS; I ASSUME; WAS THE RESULT OF THE 'JOLT' FROM THE CONTACT WITH THE RWY. WE RPTED THE WIND SHEAR TO THE TWR (MADE A PIREP) AND THE SHEAR WAS CONFIRMED BY ONE OTHER ACFT LNDG BEHIND US. IT'S DIFFICULT TO SAY JUST HOW MUCH AIRSPD LOSS WE ENCOUNTERED BUT IT WAS ENOUGH TO INCREASE THE SINK RATE CONSIDERABLY. WHILE TOUCHDOWN DURING THE REJECT WAS 'FIRM' IT COULD NOT HAVE BEEN CONSIDERED 'HARD.' THE NEXT APCH/LNDG WERE UNEVENTFUL. LESSON LEARNED: WITH STRONG; GUSTY XWINDS WIND SHEAR COULD BE PRESENT EVEN THOUGH IT'S NOT RPTED OR FORECAST -- BE ALERT! GET RPT TO TWR QUICKER SO OTHER ACFT CAN BE ADVISED -- THERE WAS A SOMEWHAT LENGTHY DELAY FROM THE TIME WE REJECTED TO THE TIME WE ACTUALLY RPTED THE SHEAR...IT TOOK QUITE SOME TIME TO FIGURE OUT JUST WHAT HAD HAPPENED. IF WE HAD BEEN QUICKER WITH OUR RPT THE OTHER ACFT LNDG BEHIND US WOULD HAVE KNOWN WHAT TO EXPECT!