Methods and apparatus for testing small form factor antenna tuning elements

A test system for testing a device under test having device under test contacts, comprising:

• a device receiving structure having first and second opposing sides and device receiving structure contacts configured to receive the device under test contacts when the device under test is mated with the device receiving structure;
• a device retention structure configured to press the device under test against the device receiving structure with a calibrated amount of pressure;
• a radio-frequency tester that is coupled to the device receiving structure and that is configured to obtain radio-frequency measurements from the device under test;
• a first radio-frequency connector that is attached to the first side of the device receiving structure and coupled to the radio-frequency tester, wherein the first radio-frequency connector comprises a first core signal conductor that is coupled to a first device receiving structure contact;
• and
• a second radio-frequency connector that is attached to the second side of the device receiving structure and coupled to the radio-frequency tester, wherein the second radio-frequency connector comprises a second core signal conductor that is coupled to a second device receiving structure contact, the first and second device receiving structure contacts contact respective first and second device under test contacts, the first and second device under test contacts are positioned at respective first and second opposing sides of the device under test, the device receiving structure contacts comprise third, fourth, and fifth device receiving structure contacts, and the third device receiving structure contact is coupled to a ground plane.