公开(公告)号：JP2000124702A

公开(公告)日：2000-04-28

申请号：JP19788099

申请日：1999-07-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KAMINSKI JOSEPH WALTER ,  KOLSRUD ARILD

IPC: H01P1/20 ,  H01P1/205 ,  H01P1/208 ,  H01P1/212 ,  H01P1/213 ,  H01P3/12 ,  H01P3/20 ,  H01P7/00 ,  H01P9/00 ,  H01Q13/08 ,  H01Q15/00 ,  H01Q15/22 ,  H01Q19/00 ,  H01Q19/10 ,  H01Q19/185

Abstract: PROBLEM TO BE SOLVED: To provide a small and inexpensive short wave filter which is adversely proportional to the desired frequency by filtering the electromagnetic signals propagated into a metallic casing through at least one frequency selection surface that is enclosed in the metallic casing. SOLUTION: A plurality of metallic repetitive patterns 24 are printed on the frequency selection surfaces 18 and 20 having thickness of 1-5 mil by means of a thin film technique. The surfaces 18 and 20 are buried into a solid dielectric material 22, and the material 22 and both surfaces 18 and 20 are completely surrounded by a metallic casing 12. Every pattern 24 has a shape that is resonated with the prescribed frequency and accordingly serves as a band elimination filter. When an electromagnetic signal 30 under propagation meets one of both surfaces 18 and 20, the energy belonging to one or more frequencies corresponding to the resonance frequency of one or more of patterns 24 are absorbed by the patterns 24 and then reflected by the Snell's refraction law. Thus, it seems that the surfaces 18 and 20 never exist against all frequencies except for the resonance frequency.

公开(公告)号：JP2001157271A

公开(公告)日：2001-06-08

申请号：JP2000298176

申请日：2000-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KAMINSKI JOSEPH WALTER ,  KOLSRUD ARILD ,  SOLONDZ MAX AARON

IPC: H04B1/18 ,  H04B1/28 ,  H04B7/26 ,  H04Q7/30 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a method and a device that can properly receive a multiplex carrier signal with a relatively high dynamic range. SOLUTION: A receiver 632 consists of filters 606, 608, 610 and each filter corresponding to one frequency band is used to receive a communication signal. A controller 624 connected to the receiver decides amplitude of a received signal. The controller is also connected to a call processing module 628. Furthermore, the controller decides whether or not the received signal is within a proper frequency band. Then the controller decides whether or not the amplitude of the received signal is within a dynamic range assigned to a frequency band in the transmitted signal. When the signal is not within a proper frequency band, the controller connected to the call processing module transmits a message to a device that has transmitted the signal to instruct the device on the frequency band of the signal to be sent.

公开(公告)号：JP2000091836A

公开(公告)日：2000-03-31

申请号：JP23908399

申请日：1999-08-26

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KAMINSKI JOSEPH WALTER ,  KOLSRUD ARILD

IPC: H01Q15/14 ,  H01P9/00 ,  H01Q15/00

Abstract: PROBLEM TO BE SOLVED: To obtain a compact frequency selection delay device for satisfactorily functioning with frequencies in a wide range including micro-wave and milli- meter wave frequencies. SOLUTION: A wide band frequency selection delay device is provided in a compact constitution. A source antenna transmits multi-frequency signals to the direction of several frequency selection faces 38, 40, and 42. Each frequency selection face 38, 40, and 42 transmits the frequency components of a signal to a receiving antenna 46. The receiving antenna 46 combines the transferred signal components, and generates a compressed signal or an expanded signal according to a method in which the frequency selection device is arranged.