Connectors with ground structure

Claim 1

An electrical connector for electrically and mechanically interconnecting a circuit assembly and a mating connector having a plurality of terminals, each terminal having a contact portion, the first contact portions arranged in rows and columns, the electrical connector comprising: a plurality of electrical contact elements wherein: each of the contact elements has a first contact and a second contact, the contact elements comprising a first set and a second set, the first contacts are arranged in rows and columns for contacting the contact portions, and the first set includes a middle portion configured such that their second contacts extend at an angle with respect to the first contacts, a housing including: a conductive base having a plurality of passages arranged in rows and columns extending through the base, the second set of the contact elements positioned in some of the passages and electrically connected to the base, a plurality of insulative blocks positioned in a remainder of the passages, the blocks having passages, the first set of the contact elements being in the block passages such that their first contacts are on a first side of the base in a contact region and their second contacts are on a second side of the base, and conductive baffles positioned between and spaced from columns of the middle portions of the contact elements in the first set, the baffles being connected to the conductive base.