Abstract: A cellular receiver range extender has an input terminal connectable to an antenna and an output terminal to which may be connected a microwave radio receiver for cellular communication signals. The input terminal directs RF signals to a bandpass preselector covering a frequency spectrum of 825 MHz to 890 MHz leading to a low-noise preamplifier for amplifying the preselected RF signals. A divider coupled to the preamplifier feeds signals from the preamplifier at equal power levels into first and second RF paths. The first path includes a band pass filter covering the reverse cellular communication channel RF signal band from 825 MHz to 845 MHz, and the second path includes a band pass filter covering the forward cellular communication channel RF signal band from 870 MHz to 890 MHz. In the first path reverse channel signals are amplified by a low-noise amplifier while in the second path forward channel signals are attenuated.

Abstract: A captivation assembly for supporting and retaining a center contact of a coaxial connector includes a plurality of dielectric elements, preferably three, captured in concave seats in a contact support member which is located on the axis of the connector and to which the center contact is secured. These concave seats face radially outwardly on the contact support member and are uniformly angularly spaced about the axis of the connector. A retainer ring of generally hollow cylindrical configuration is included in the assembly of the outer conductive body of the connector. This retainer ring encircles the assembly of dielectric elements for retaining them in their respective seats in supporting and holding relationship. The captivation assembly desirably minimizes the amount of dielectric material while securely supporting and holding the center contact for resisting displacement of the center contact both radially and axially.

Abstract: An electrical connector having inner conductor captivation with electrical compensation includes an outer conductor or shell and also includes a dielectric member disposed within the outer conductor having an axial opening extending therethrough. An inner conductor or contact is disposed within the axial opening in the dielectric member in electrical isolation from the outer conductor and means are provided for captivating the inner conductor or contact against axial and rotational movement within the opening. The connector is characterized by the captivating means providing an electrical impedance differing from the electrical impedance remote therefrom and further includes means for compensating for the differing electrical impedance provided by the captivating means adjacent thereto. With these features of construction, the connector not only effectively captivates the inner conductor but also effectively compensates for the differing electrical impedance resulting therefrom.

Abstract: A high frequency coaxial cable exhibiting a low insertion loss and a low reflection coefficient, and incorporating an improved construction providing for convenient adjustment of impedance.