摘要:
A PIM (Passive InterModulation) test bench comprises a first duplexer having a first port connected via a first filter to a third port and a second port connected via a second filter to the third port. The first port is fed by signal sources providing RF signals at a first frequency and at a second frequency. A spectrum analyzer is connected to the second port. A DUT (Device under Test) is connected between said third port and a third port of a second duplexer. Each of the first and second ports of the second duplexer are connected to a PIM optimized load and/or a standard load. The second duplexer is preferably identical to the first duplexer. For minimizing self-intermodulation, at least the first duplexer comprises at least one filter component and a metal housing, the housing further comprises a monolithic metal body and a metal cover capacitively coupled to the body without any galvanic contact.
摘要:
A PIM (Passive InterModulation) test bench comprises a first duplexer having a first port connected via a first filter to a third port and a second port connected via a second filter to the third port. The first port is fed by signal sources providing RF signals at a first frequency and at a second frequency. A spectrum analyzer is connected to the second port. A DUT (Device under Test) is connected between said third port and a third port of a second duplexer. Each of the first and second ports of the second duplexer are connected to a PIM optimized load and/or a standard load. The second duplexer is preferably identical to the first duplexer. For minimizing self-intermodulation, at least the first duplexer comprises at least one filter component and a metal housing, the housing further comprises a monolithic metal body and a metal cover capacitively coupled to the body without any galvanic contact.
摘要:
A low passive intermodulation (PIM) RF rotary switch comprises a plurality of center conductors connected to stationary pads, at least two rotatable pads connected by a rotatable pad bridge. Depending on the switching state at least two stationary pads are in close proximity to at least two rotatable pads, thus generating a RF signal connection between the center conductors via the stationary and rotatable pads.
摘要:
A low passive intermodulation (PIM) RF rotary switch comprises a plurality of center conductors connected to stationary pads, at least two rotatable pads connected by a rotatable pad bridge. Depending on the switching state at least two stationary pads are in close proximity to at least two rotatable pads, thus generating a RF signal connection between the center conductors via the stationary and rotatable pads.
摘要:
A RF connector assembly, suitable for millimeter waves comprises a housing 100, holding a transmission line 200 and a RF connector 300. The transmission line has a band conductor 210 held in an outer conductor 220. The band conductor 210 is supported by a plurality of holding pins 240. The holding pins 240 are fixed by holes 223-224 in the outer conductor and penetrate the inner conductor through holes 213 therein. The holding pins 240 are injection molded parts made of plastic. They comprise of two sections 241-242 which can be connected together by a plug and socket connection. One end of the transmission line has a printed circuit board contact 211 for contacting a strip line 410, while the other end of the transmission line has a contact 212 for connecting the inner conductor of the RF connector.
摘要:
A coaxial RF test connector comprises an inner conductor and an outer conductor arranged coaxially to a center axis. The outer conductor comprises a groove for holding a circular shaped contact spring. The contact spring comprises a base and a plurality of arc-shaped contact fingers with gaps between the individual contact fingers extending from the base. The base has a larger radius than the contact fingers. The contact fingers have first contact section for contacting the outer conductor of an compatible coaxial connector in a direction radial to the center axis and a second contact section for capacitively coupling to a sidewall of the groove.
摘要:
A coaxial RF test connector comprises an inner conductor and an outer conductor arranged coaxially to a center axis. The outer conductor comprises a groove for holding a circular shaped contact spring. The contact spring comprises a base and a plurality of arc-shaped contact fingers with gaps between the individual contact fingers extending from the base. The base has a larger radius than the contact fingers. The contact fingers have first contact section for contacting the outer conductor of an compatible coaxial connector in a direction radial to the center axis and a second contact section for capacitively coupling to a sidewall of the groove.
摘要:
A RF connector assembly, suitable for millimeter waves comprises a housing 100, holding a transmission line 200 and a RF connector 300. The transmission line has a band conductor 210 held in an outer conductor 220. The band conductor 210 is supported by a plurality of holding pins 240. The holding pins 240 are fixed by holes 223-224 in the outer conductor and penetrate the inner conductor through holes 213 therein. The holding pins 240 are injection molded parts made of plastic. They comprise of two sections 241-242 which can be connected together by a plug and socket connection. One end of the transmission line has a printed circuit board contact 211 for contacting a strip line 410, while the other end of the transmission line has a contact 212 for connecting the inner conductor of the RF connector.