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41. 发明专利

JPH04213905A PLANAR ARRAY ANTENNA 失效
公开(公告)号：JPH04213905A
公开(公告)日：1992-08-05
申请号：JP40137490
申请日：1990-12-11
申请人： AISIN SEIKI , SHINSANGYO KAIHATSU KK
发明人： YAMADA TAKAHIRO
IPC分类号： H01Q3/38 , H01Q21/06 , H01Q23/00
摘要： PURPOSE:To reduce a feeder loss and to allow the antenna to trace a rocking of a traveling object by arranging a phase shifter at a position in a shortest distance from a microstrip batch antenna and selecting a beam direction of the antenna without moving the antenna itself. CONSTITUTION:A phase shifter is arranged to an upper face and a lower face of an antenna board 30, which changes a phase of radio wave signals from plural microstrip batch antennas 211-244. Each of the antennas 211-244 consists of two-layer boards 1, 6 and a ground plane 3 is formed between the two-layer boards 1 and 6. Moreover, lots of phase shifters with a different phase shift are connected in series. Thus, the beam direction is selected in plural directions without moving the antennas 211-244 themselves.

42. 发明专利

JPH03220475A RADAR 失效
公开(公告)号：JPH03220475A
公开(公告)日：1991-09-27
申请号：JP1526890
申请日：1990-01-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAITO ATSUSHI
IPC分类号： H01Q3/26 , G01S7/02 , H01Q3/38 , H01Q21/06
摘要： PURPOSE:To enable the formation of a transmission beam to a plurality of targets simultaneously by dividing a conformal array antenna into a plurality of areas to calculate a phase value in the formation of beams corresponding to targets different in direction. CONSTITUTION:First, a conformal array antenna 1 is divided into (n) areas of according to directions of targets 181 - 184. Then, a phase value is calculated for each of the areas corresponding to phase devices 141-14n belonging top the respective areas divided and (n) transmission beams 201-2014 are synthesized simultaneously accordingly. The radio waves thus transmitted are reflected respectively on the targets 181-184 to be received independently as received beams 211-214. Therefore, the control of the phase devices 141-14n is divided into areas to allows the formation of a multibeam for the transmission simply by computation for each area. This enables the utilization of a radiation energy of the antenna 1 to the fullest while characteristic in the formation of the multibeam by the formation of a digital beam is utilized effectively thereby achieving a detection distance significantly.

43. 发明专利

JPH0356005B2 失效
公开(公告)号：JPH0356005B2
公开(公告)日：1991-08-27
申请号：JP16473881
申请日：1981-10-15
IPC分类号： H01Q3/38 , H01Q3/34 , H01Q3/46 , H01Q19/06

44. 发明专利

JPH03165607A PHASED ARRAY ANTENNA SYSTEM 失效
公开(公告)号：JPH03165607A
公开(公告)日：1991-07-17
申请号：JP30530389
申请日：1989-11-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： NIIMURA HIROSHI
IPC分类号： H01Q3/38
摘要： PURPOSE:To reduce the fluctuation of power consumption and to use the system for a satellite-mount antenna system effectively by adding K-kind of offsets to an M-bit phase shift quantity of N-set of antenna elements so as to form (K+1)-kind of the M-bit phase shift quantities for N-set of antenna elements and outputting only one proper quantity to a phase shifter driver among them. CONSTITUTION:Each of K-set of proper offsets is added to each phase of antenna elements 161-16N without varying the relative phase among the antenna elements 161-16N to calculate n-set of antenna element phase shift quantities in (K+1)-way with different absolute phases but equal relative phase, and a proper quantity to obtain an optimum power consumption is selected among the (K+1)-way of the quantities and the result is outputted to a phase shifter driver 12. Thus, the power consumption of the phase shifter driver 12 is made larger than a prescribed value and close to an average value, and a phased array antenna system is realized, in which the fluctuation of the power consumption is minimized and the power consumption is not zero.

45. 发明专利

JPH02224505A PHASED ARRAY ANTENNA 失效
公开(公告)号：JPH02224505A
公开(公告)日：1990-09-06
申请号：JP4618089
申请日：1989-02-27
申请人： NEC CORP
发明人： KUWABARA YOSHIHIKO
IPC分类号： H01Q3/38
摘要： PURPOSE:To suppress a quantized lobe with simple constitution hy quantizing a feeding phase of an element antenna with a series feeding circuit with a delay line and a branch circuit connected alternately and a digital phase shifter and applying beam scanning. CONSTITUTION:A signal from a signal source 6 is divided into equally two by a 2-distributer 5 and fed to a series feeding circuit in which a delay line 3 and a directional coupler 4 are connected in cascade alternately. A coupler 4 extracts required power and gives it to a digital phase shifter 2. The phase shifter 2 adds a delayed phase retarded by a delay line 3 to a phase required for beam scanning to excite an element antenna 1 in a form including a quantized phase error. Thus, the quantized phase error is subject to random processing with simple mechanism and the quantized lope is suppressed in average.

46. 实用新型

JPH0288305U 失效
公开(公告)号：JPH0288305U
公开(公告)日：1990-07-12
申请号：JP16873988
申请日：1988-12-27
IPC分类号： H01P1/22 , H01Q3/38 , H03H7/24

47. 发明专利

JPH02166901A ANTENNA SYSTEM 失效
公开(公告)号：JPH02166901A
公开(公告)日：1990-06-27
申请号：JP32278088
申请日：1988-12-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： CHIBA ISAMU , SATO SHINICHI , TSUDA YOSHIAKI
IPC分类号： H01Q3/24 , H01Q3/26 , H01Q3/30 , H01Q3/38 , H01Q25/02
摘要： PURPOSE:To set the scanning range of the beam in detail to improve the setting accuracy of the direction of an arrival wave and to detect the scanning direction of a beam with excellent accuracy by providing an element selection circuit and a selection element phase control circuit. CONSTITUTION:The element selection circuit 1 selects the required number of element antennas C1, C2,...CLa, D1, D2,..., and DLb among plural element antennas A1-AN, B1-BN corresponding to the scanning angle of the beam. The selection element phase control circuit 2 controls the set phase of shifters PC1, PC2,...PCLa, Pd1, Pd2,...PdLb connected to selected antennas based on the number of element antennas in a group and the electric field strength of the element antenna. Thereby, it is possible to vary the phase of the selected antenna separately from a preset quantity corresponding to the ordinary beam scan of selected element antenna, therefore, the scanning range of the beam is set in detail, the setting accuracy of the scanning direction of the beam can be improved, and the direction of the arrival wave can be detected with high accuracy.

48. 发明专利

JPH02152306A MICROWAVE PHASE SHIFTER 失效
公开(公告)号：JPH02152306A
公开(公告)日：1990-06-12
申请号：JP30579188
申请日：1988-12-02
申请人： TOSHIBA CORP
发明人： UEHASHI SUSUMU
IPC分类号： H01Q3/38
摘要： PURPOSE:To accurately change phase shifting quantity with fine steps by providing a digital variable phase shifting circuit and an analog phase shifting circuit to be serially connected and to analogically change the passing phase of a microwave signal based on control data from an arithmetic circuit. CONSTITUTION:For example, the 6-bit control data are held by a register 3 and after that, the data are divided into high-order 4 bits and low-order 2 bits. Then, unitary bit phase shift 5a-5d is executed to the digital system of the high-order 4 bits and phase shifting quantity is set. After that, a bias voltage to correspond to the analog system of the low-order 2 bits is supplied to an analog variable phase shifting circuit 13 and phase shifting quantity is set. Compensating data to correspond to the high-order 4 bit control data, which are read by a storing circuit 9, are operated 10 together with the control data of the low-order 2 bits. Then, a different output is sent to a storing circuit 11 as the control data, for which the phase shifting error part of the digital system is compensated. For the bias voltage data of this output, D/A conversion 12 is executed and the data are supplied to the circuit 13. Then, the microwave signal, for which the phase shifting error of the digital system is compensated, is obtained.

49. 发明专利

JPH02104101A PHASE SHIFTING STRUCTURE 失效
公开(公告)号：JPH02104101A
公开(公告)日：1990-04-17
申请号：JP20660389
申请日：1989-08-09
申请人： HUGHES AIRCRAFT CO
发明人： KASURIIN ROU , DEIBITSUTO DEII RINCHI JIYUNIA , SUTEIIBU PANEATOSU , AASAA SHIITON
IPC分类号： H01P1/185 , H01Q3/38
摘要： PURPOSE: To obtain compact antenna structure with comparatively light weight by integrating a waveguide phase shifter circuit to each slot so as not to provide the effect on the operation of a waveguide having a size in the lengthwise direction and propagating electromagnetic energy. CONSTITUTION: The electromagnetic energy emitted by a plurality of parallel rectangular waveguides 11 arranged in row and column directions is emitted from an aperture end of an aperture 13 of an antenna. A waveguide antenna array 10 includes a plurality of lengthwise direction slot 15 extended along the center of each column of the waveguide 11, each slot receives a phase shifter strip 17 and each strip is controlled so as to change a phase of a radiant ray supplied by the columns of the waveguides. Then a phase shifter circuit 20 is integrated to each slot 15 of the waveguide 11 so as not to provide effects on the operation of the waveguide 11. Thus, the structure of the compact antenna with comparatively light weight is attained.

50. 实用新型

JPH01156612U 失效
公开(公告)号：JPH01156612U
公开(公告)日：1989-10-27
申请号：JP5189688
申请日：1988-04-18
IPC分类号： H01Q3/38 , H01Q3/40 , H01Q21/06

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