Following the failure of his alternator and loss of communication capability; the Pilot of a PA28 was intercepted by a Military Fighter upon entering a restricted TFR area. The PA28 was directed to land at a nearby airport.

Narrative

We had departed to visit my wife's mother in a nursing home. About one hour into the flight; the alternator on the plane failed and we lost all radios. We were VFR on top; in the clear above the clouds; and I continued my flight since we had plenty of fuel. I decided not to return to our departure airport since the weather was marginal there and in a high traffic area. I was doing my best to avoid the 60 mile radius defining the restricted zone; when I must have flown into the TFR area. I was using my i-Pad for navigation since I had no radios. It was a route I had flown before without incident. When the Military Fighter intercepted us; I thought that I must be in a training area; but when they made a second pass; I then assumed they were trying to contact us. I remembered a hand held backup radio and contacted the jet pilot on 121.5; they asked if I wanted to Declare an Emergency and I said no; They then asked several questions which I answered. I was then told to contact ZZZ Tower and proceed to the airport and land; which we did.