Professor Cristal has visited Britain a number of times since last May to consult lawyers about taking legal action against the union and the trust.
A trial is due to begin at Central London County Court on September 11 and to last three days. He is expected to be represented by lawyers from the Mishcon de Reya law firm.
After revealing his intention to take legal action last year, Prof Cristal said he wanted to “fight the delegitimisation movement”.
He added that he wanted “public acknowledgement of the wrongdoing of discrimination against me as an Israeli — and the public assurance that this will not be repeated”.