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1. 发明授权

US3262113A Thru-channel monopulse radar directional control system 失效
标题翻译：通道单脉冲雷达方向控制系统
公开(公告)号：US3262113A
公开(公告)日：1966-07-19
申请号：US13613361
申请日：1961-08-25
申请人： MURRAY HEFTER , JUDD BLASS
发明人： MURRAY HEFTER , JUDD BLASS
IPC分类号： G01S13/44
CPC分类号： G01S13/4436

2. 发明授权

US4847852A Ultra compact, RF excited gaseous lasers 失效
标题翻译：超紧凑型RF激发气体激光器
公开(公告)号：US4847852A
公开(公告)日：1989-07-11
申请号：US135384
申请日：1987-12-21
申请人： Shaul Yatsiv , Amnon Gabay , Mordechai Brestel , Judd Blass, deceased
发明人： Shaul Yatsiv , Amnon Gabay , Mordechai Brestel , Judd Blass, deceased
IPC分类号： H01S3/03 , H01S3/04 , H01S3/041 , H01S3/097 , H01S3/0975
CPC分类号： H01S3/0975 , H01S3/041
摘要： A laser comprising an RF matching unit having an RF power input and an RF power output, an optical cavity including electrode apparatus extending along the optical cavity, receiving the RF power output and defining a discharge gap having a gaseous lasing medium disposed therein, the RF power output being operative to produce a population inversion in the gaseous lasing medium, and an arrangement for providing direct fluid cooling contact with the electrode apparatus generally along its entire extent.

3. 发明授权

US4691163A Dual frequency surface probes 失效
标题翻译：双频表面探头
公开(公告)号：US4691163A
公开(公告)日：1987-09-01
申请号：US713689
申请日：1985-03-19
申请人： Judd Blass , Hanan Keren
发明人： Judd Blass , Hanan Keren
IPC分类号： G01R33/341 , G01R33/36 , G01R33/08
CPC分类号： G01R33/3635 , G01R33/341
摘要： A radio frequency surface probe for data acquisition in magnetic resonance systems. The probe is comprised of a plurality of inductors connected together with tuning capacitors in a balanced configuration. The configuration enables the probe to be impedance matched and to resonate at two separate frequencies without having to be tuned between frequency settings and without being effected by the impedance variations that are caused by the different samples or patients.
摘要翻译：用于磁共振系统中数据采集的射频表面探针。探头由平衡配置的与调谐电容器连接在一起的多个电感器组成。该配置使得探针能够阻抗匹配并在两个分开的频率下谐振，而不必在频率设置之间进行调谐，而不受不同样品或患者引起的阻抗变化的影响。

4. 发明授权

US4613837A Multiple feed Rf coils 失效
标题翻译：多馈RF线圈
公开(公告)号：US4613837A
公开(公告)日：1986-09-23
申请号：US668944
申请日：1984-11-07
申请人： Judd Blass , Hanan Keren
发明人： Judd Blass , Hanan Keren
IPC分类号： G01R33/34 , H01P7/00 , G01V3/14
CPC分类号： G01R33/3628 , G01R33/34061 , G01R33/34069 , G01R33/341
摘要： An Rf coil arrangement for MRI systems wherein the electrical length is reduced to improve the S/N ratio and the Rf power efficiency.
摘要翻译：用于MRI系统的Rf线圈装置，其中电长度减小以提高S / N比和Rf功率效率。

5. 发明授权

US4028704A Broadband ferrite transformer-fed whip antenna 失效
标题翻译：宽带铁氧体变压器鞭状天线
公开(公告)号：US4028704A
公开(公告)日：1977-06-07
申请号：US605338
申请日：1975-08-18
申请人： Judd Blass
发明人： Judd Blass
IPC分类号： H01Q9/16 , H01Q9/30 , H01Q1/32
CPC分类号： H01Q9/30 , H01Q9/16
摘要： The feed point of a whip antenna having a length less than one quarter-wavelength at the lowest frequency of operation is raised above a counterpoise ground plane by a short base sleeve. Gain over a 2.5:1 bandwidth of radio frequencies closely approaches the gain of a standard quarter-wavelength antenna without requiring use of power-dissipating resistance loading. A ferrite transformer at the whip antenna feedpoint is utilized to reduce the high anti-resonance impedance of the broadband whip antenna to the characteristic impedance of a coaxial cable transmission system and to minimize the VSWR thereof. The base sleeve raises the antenna resistance at the resonant frequency near the lower end of the bandwidth to make the transformer effective as an impedance matching element over the entire radio frequency band.A pair of the whip antennas are axially aligned and electrically coupled in series to realize a broadband dipole having increased gain. A pair of dipoles are energized in phased relationship to realize even higher gain and directivity.
摘要翻译：在最低工作频率下具有小于四分之一波长的长度的鞭状天线的馈电点通过短的基座套筒升高到平衡地平面之上。无线电频率2.5：1带宽的增益接近标准四分之一波长天线的增益，而不需要使用功率耗散电阻负载。利用鞭状天线馈电点处的铁氧体变压器将宽带鞭状天线的高抗共振阻抗降低到同轴电缆传输系统的特性阻抗，并使其VSWR最小化。基座套管以接近带宽下端的共振频率提高天线电阻，使变压器在整个无线电频段成为阻抗匹配元件。

6. 发明授权

US3950757A Broadband whip antennas 失效
标题翻译：宽带天线
公开(公告)号：US3950757A
公开(公告)日：1976-04-13
申请号：US557836
申请日：1975-03-12
申请人： Judd Blass
发明人： Judd Blass
IPC分类号： H01Q1/32 , H01Q9/30
CPC分类号： H01Q9/30 , H01Q1/32
摘要： A whip antenna with a substantially constant impedance over a broad band of radio frequencies includes a mounting section, a high-power-dissipation low-resistance assembly, a first whip section, a second whip section, and a high-impedance quarter-wavelength transformer section concentrically formed around the first whip section and extending from the resistance assembly to the junction of the first and second whip sections. The low-resistance termination is attached close to the base of the antenna and is transformed to a high resistance at the junction of the first and second whip sections at the frequency where the matching section length equals one quarter-wavelength. The resistive power loss only occurs over a limited band centered at the design frequency of the matching section. Instability caused by emplacement of a high-mass resistive termination towards the top of the complete antenna is thus avoided.

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