A coaxial connector junction, comprising: (a) a first coaxial connector, comprising: a first central conductor extension comprising a substantially cylindrical post; a first outer conductor extension spaced apart from and circumferentially surrounding the first central conductor extension; and a first dielectric spacer interposed between the first central conductor extension and the first outer conductor extension; (b) a second coaxial connector, comprising: a second central conductor extension, the second central conductor extension including a substantially cylindrical cavity therein; a second outer conductor extension spaced apart from and circumferentially surrounding the second central conductor extension; and a second dielectric spacer interposed between the second central conductor extension and the second outer conductor extension; wherein the first coaxial connector engages the second coaxial connector, the post of the first central conductor extension being insertable into the cavity of the second central conductor extension such that a capacitive element is created between the first and second central conductor extensions by a gap between the first central conductor extension and the second central conductor extension, characterized in that the first coaxial connection includes a dielectric guard element attached to the first central conductor extension, the guard element having an outermost diameter that is greater than an outermost diameter of a dielectric layer applied to the first central conductor extension. (a) a first coaxial connector, comprising: a first central conductor extension comprising a substantially cylindrical post; a first outer conductor extension spaced apart from and circumferentially surrounding the first central conductor extension; and a first dielectric spacer interposed between the first central conductor extension and the first outer conductor extension; a first central conductor extension comprising a substantially cylindrical post; a first outer conductor extension spaced apart from and circumferentially surrounding the first central conductor extension; and a first dielectric spacer interposed between the first central conductor extension and the first outer conductor extension; (b) a second coaxial connector, comprising: a second central conductor extension, the second central conductor extension including a substantially cylindrical cavity therein; a second outer conductor extension spaced apart from and circumferentially surrounding the second central conductor extension; and a second dielectric spacer interposed between the second central conductor extension and the second outer conductor extension; wherein the first coaxial connector engages the second coaxial connector, the post of the first central conductor extension being insertable into the cavity of the second central conductor extension such that a capacitive element is created between the first and second central conductor extensions by a gap between the first central conductor extension and the second central conductor extension, characterized in that the first coaxial connection includes a dielectric guard element attached to the first central conductor extension, the guard element having an outermost diameter that is greater than an outermost diameter of a dielectric layer applied to the first central conductor extension. a second central conductor extension, the second central conductor extension including a substantially cylindrical cavity therein; a second outer conductor extension spaced apart from and circumferentially surrounding the second central conductor extension; and a second dielectric spacer interposed between the second central conductor extension and the second outer conductor extension; wherein the first coaxial connector engages the second coaxial connector, the post of the first central conductor extension being insertable into the cavity of the second central conductor extension such that a capacitive element is created between the first and second central conductor extensions by a gap between the first central conductor extension and the second central conductor extension, characterized in that the first coaxial connection includes a dielectric guard element attached to the first central conductor extension, the guard element having an outermost diameter that is greater than an outermost diameter of a dielectric layer applied to the first central conductor extension.