1
G Conrad Dalman, Hiroshi Kondoh: Millimeter wave vector network analyzer. Cornell Research Foundation, Jones Tullar & Cooper, July 14, 1987: US04680538 (75 worldwide citation)

A vector network analyzer system for measuring the complex impedance of devices and components at millimeter wavelengths is disclosed. A pair of directional couplers provide samples of the signal incident on and reflected from the element under test through reference and test channels, respectively. ...


2
G Conrad Dalman: Parallel plate transmission lines integrated with coplanar waveguides or slot lines and method of making same. Cornell Research Foundation, Sughrue Mion Zinn Macpeak & Seas, March 11, 1986: US04575700 (17 worldwide citation)

A solid state integrated circuit type transmission line structure is formed by a semi-conductor substrate consisting of an active layer and a semi insulating layer of given conductivities and permittivity which bears a groove extending through the active layer into the semi insulating layer of the s ...


3
G Conrad Dalman, Charles A Lee: Monolithic coplanar waveguide travelling wave transistor amplifier. Cornell Research Foundation, Jones Tullar & Cooper, May 6, 1986: US04587541 (16 worldwide citation)

A microwave and millimeter wave amplifier consisting of a field effect travelling wave transistor monolithically integrated into a coplanar waveguide having input, output and matching sections is disclosed. The amplifier consists of a semi-insulating substrate doped on its upper surface to form with ...


4
G Conrad Dalman: Waveguide adaptors. Cornell Research Foundation, Jones Tullar & Cooper, November 16, 1993: US05262739 (12 worldwide citation)

A waveguide adaptor or transition for interfacing a microwave waveguide to a coplanar transmission line or electronic device is disclosed. The adaptor includes a waveguide section having an integral coplanar transmission line formed in a longitudinal slot in a top wall thereof. A metallic fin is dis ...


5
John J Berenz, G Conrad Dalman, Charles A Lee: Opposed gate-source transistor. TRW, Noel F Heal, Robert M Wallace, November 12, 1985: US04551904 (11 worldwide citation)

A field-effect transistor (FET) and a corresponding method for its fabrication, the transistor having a source and a gate located at opposite faces of an active channel region formed in a substrate, the source being substantially shorter in effective length than the gate and located symmetrically wi ...


6
Alison Schary, G Conrad Dalman, Charles A Lee: Dielectric waveguide-to-coplanar transmission line transitions. Cornell Research Foundation, Jones Tullar & Cooper, July 6, 1993: US05225797 (7 worldwide citation)

Dielectric waveguide-to-transmission line transition structures are disclosed which can be used to interface low loss dielectric waveguides with integrated electric circuits for operation in millimeter wave frequency ranges on the order of 100 GHz. Numerous transition designs are presented for inter ...


7
Charles A Lee, G Conrad Dalman: PTM signal generator combining outputs of two same frequency oscillators. Cornell Research Foundation, Jones Tullar & Cooper P C, July 29, 1997: US05652548 (5 worldwide citation)

A high frequency pulse-time modulation signal generator employs first and second microwave or laser oscillators which are mutually locked uniquely either in a symmetric mode or an antisymmetric mode by means of an electronic phase shifter. The output signals from the oscillators are combined to gene ...


8
John J Berenz, G Conrad Dalman, Charles A Lee: Opposed gate-source transistor. TRW, James M Steinberger, Ronald M Taylor, August 21, 1990: US04951099 (4 worldwide citation)

A field-effect transistor (FET) and a corresponding method for its fabrication, the transistor having a source and a gate located at opposite faces of an active channel region formed in a substrate, the source being substantially shorter in effective length than the gate and located symmetrically wi ...


9
G Conrad Dalman, Charles A Lee: Broadband high power IMPATT amplifier circuit. Cornell Research Foundation, Jones Tullar & Cooper, November 18, 1986: US04623849 (1 worldwide citation)

An IMPATT diode mounted in a double-tuned resonant cavity to exhibit stability by suppressing subharmonic frequencies is disclosed. A foreshortened quarter wavelength section is connected to the diode to form an equivalent parallel resonant circuit at one end thereof. At the other end of the quarter ...


10
G Conrad Dalman: Waveguide adaptors and Gunn oscillators using the same. Cornell Research Foundation, Jones Tullar & Cooper, May 21, 1991: US05017892 (1 worldwide citation)

A waveguide adaptor or transition for interfacing a microwave waveguide to a coplanar transmission line or electronic device is disclosed. The adaptor includes a waveguide section having an integral coplanar transmission line formed in a longitudinal slot in a top wall thereof. A metallic fin is dis ...