Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1983-01-05
1984-07-17
Ng, Jin F.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
H04B 126
Patent
active
044610416
ABSTRACT:
The front end of a microwave receiver includes a waveguide with one wall comprised partially of the conductive ground plane of a printed circuit board. On the opposite side of the circuit board is mounted receiver front end circuitry including packaged, discrete devices and integrated circuits. An RF probe is inserted through the circuit board and into the waveguide for picking up a signal incident thereon and providing it to the aforementioned receiver front end circuitry. Incorporated in the waveguide is a cavity also partially formed from the ground plane of the receiver circuit board and containing a dielectric resonator element which, in combination with an oscillator located on the circuit board, provides a reference frequency for mixing with the received signal in generating an IF signal which is then provided to IF signal processing circuitry. The integrated RF receiver/waveguide is compact, incorporates readily available components in an inexpensively manufactured structure, and is particularly adapted for the front end of an SHF receiver such as utilized to receive satellite television signals.
REFERENCES:
patent: 4032849 (1977-06-01), Gysel et al.
patent: 4276655 (1981-06-01), Kraemer et al.
patent: 4348773 (1982-09-01), Caroli
patent: 4412354 (1983-10-01), Hu
patent: 4418429 (1983-11-01), Roberts
Integrated SHF Converter Simplifies Satellite Broadcasting Paper for the "Institute of Television Engineers of Japan, Technical Group on Radio Engineering" V12, 1978, pp. 55-57.
Low-Noise 12 GHz front-end Designs for Direct Satellite Television Reception, P. Harrop, P. Lesartre, T.H.A.M. Vlek 1980 vol. 39, No. 10, pp. 257-268.
Integrated SHF Converter Formed on a Single Teflon-Fiberglass Substrate, pp. 1-7, Keiro Shinkawa, Chu-ichi Sodeyama, Masao Kamimura, Kanji Yokoyama.
Ng Jin F.
Zenith Radio Corporation
LandOfFree
Integrated RF receiver/waveguide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated RF receiver/waveguide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated RF receiver/waveguide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1495472