Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
201 words
A broadband distributed amplifier/mixer for frequency mixing in the gigahertz range, characterized by : first and second artificial transmission line means (120, 130; 220, 220", 230 230'), each having serially connected inductive segments (22-24; 32-34; 122-124; 132-134); first input terminals (15, 102, 103, 202, 203) associated with said-transmission line means and adapted to be connected to an RF source (100, 200); second input terminals (20, 21, 105, 106, 205, 206) as- - sociated with said transmission line means and adapted to be connected to a local oscillator source (14, 108, 208); a plurality of FETs (50--53; 90 - 93; 150- 153; 250 - 253) in said distributed amplifier/mixer, including a first plurality of FETs (50, 52; 150, 152; 250, 252) each having an electrode connected along said first transmission line means (120, 220, 220'), and including a second plurality of FETs (51, 53; 151, 153; 251, 253) each having an electrode connected along said second transmission line means (130, 230, 230'); and, IF (intermediate frequency) artificial transmission line means (140, 240) having serially connected inductive segments (82 - 84, 142 - 144, 242-244), said IF transmission line means being connected to an output electrode or at least some of said FETs.
Claim 2
Dependent Claim
201 words
A broadband distributed amplifier/mixer for frequency mixing in the gigahertz range, characterized by : first and second artificial transmission line means (120, 130; 220, 220", 230 230'), each having serially connected inductive segments (22-24; 32-34; 122-124; 132-134); first input terminals (15, 102, 103, 202, 203) associated with said-transmission line means and adapted to be connected to an RF source (100, 200); second input terminals (20, 21, 105, 106, 205, 206) as- - sociated with said transmission line means and adapted to be connected to a local oscillator source (14, 108, 208); a plurality of FETs (50--53; 90 - 93; 150- 153; 250 - 253) in said distributed amplifier/mixer, including a first plurality of FETs (50, 52; 150, 152; 250, 252) each having an electrode connected along said first transmission line means (120, 220, 220'), and including a second plurality of FETs (51, 53; 151, 153; 251, 253) each having an electrode connected along said second transmission line means (130, 230, 230'); and, IF (intermediate frequency) artificial transmission line means (140, 240) having serially connected inductive segments (82 - 84, 142 - 144, 242-244), said IF transmission line means being connected to an output electrode or at least some of said FETs.
Claim 3
Dependent Claim
174 words
A broadband IC distributed amplifier/mixer circuit, characterized by: a pair of transmission line means (120, 130); an output transmission line (140); a first plurality of essentially parallel FETs (150, 152) connected along a first (120) of said transmission line means and also to said output transmission line (140); a second plurality of essentially parallel FETs (151, 153) connected along a second (130) of said transmission line means and also to said output transmission line (140); said first and second plurality of FETs making up a dual distributed amplifier/mixer circuit; and, first input means (100, 101) to be connected to a first signal and second input means (107, 108) to be connected to a second signal, said first input means and said second input means applying said first signal and said second signal to said dual circuit to be amplified and mixed, one of said first and second signals being applied in push-pull to said dual circuit and the other of said first and second signals being applied in-phase to said circuit for frequency mixing.
Claim 4
Dependent Claim
174 words
A broadband IC distributed amplifier/mixer circuit, characterized by: a pair of transmission line means (120, 130); an output transmission line (140); a first plurality of essentially parallel FETs (150, 152) connected along a first (120) of said transmission line means and also to said output transmission line (140); a second plurality of essentially parallel FETs (151, 153) connected along a second (130) of said transmission line means and also to said output transmission line (140); said first and second plurality of FETs making up a dual distributed amplifier/mixer circuit; and, first input means (100, 101) to be connected to a first signal and second input means (107, 108) to be connected to a second signal, said first input means and said second input means applying said first signal and said second signal to said dual circuit to be amplified and mixed, one of said first and second signals being applied in push-pull to said dual circuit and the other of said first and second signals being applied in-phase to said circuit for frequency mixing.
Claim 5
Dependent Claim
176 words
A dual distributed amplifier/mixer, character-ized by: first and second sections, the first section comprising first artificial transmission line means (120) having a plurality of inductive segments (122, 123, 124) distributed therealong, said first transmission line means having RF input terminals (102) and local oscillator (LO) input terminals (105) associated therewith, a first plurality of FETs (150, 152) in said first section each having input circuits connected along said first transmission line means between said segments, the second section comprising second artificial transmission line means (130) having a plurality of inductive segments (132, 133, 134) distributed therealong, said second transmission line means having RF input terminals (103) and local oscillator (LO) input terminals (106) associated therewith, a second plurality of FETs (151, 152) in said second section each having input circuits connected along said second transmission line means between said segments, and a common IF output artificial transmission line (140) having a plurality of inductive segments (142, 143, 144) distributed therealong, said first and second sections having output connections (1-46, 147) to said IF output transmission line.
Claim 6
Dependent Claim
176 words
A dual distributed amplifier/mixer, character-ized by: first and second sections, the first section comprising first artificial transmission line means (120) having a plurality of inductive segments (122, 123, 124) distributed therealong, said first transmission line means having RF input terminals (102) and local oscillator (LO) input terminals (105) associated therewith, a first plurality of FETs (150, 152) in said first section each having input circuits connected along said first transmission line means between said segments, the second section comprising second artificial transmission line means (130) having a plurality of inductive segments (132, 133, 134) distributed therealong, said second transmission line means having RF input terminals (103) and local oscillator (LO) input terminals (106) associated therewith, a second plurality of FETs (151, 152) in said second section each having input circuits connected along said second transmission line means between said segments, and a common IF output artificial transmission line (140) having a plurality of inductive segments (142, 143, 144) distributed therealong, said first and second sections having output connections (1-46, 147) to said IF output transmission line.
Claim 7
Dependent Claim
57 words
Amplifier/mixer according to claim 3, charac- terized in that said input terminals (102, 103; 105, 106) to be connected to RF and LO signals respectively, one of said RF and LO signals being applied in push-pull to said dual circuit and the other of said RF and LO signals being applied-in-phase to said circuit for frequency mixing.
Claim 8
Dependent Claim
74 words
Amplifier/mixer according to claim 3, charac- terized in that said first plurality of FETs (150, 152) has the gate electrodes connected along the first of said transmission line means (120) and the drain electrodes connected to said IF transmission line (140), and said second plurality of FETs (151, 153) has the gate electrodes connected along the second of said transmission line means (130). and the drain electrodes connected to said IF transmission- line (140).
Claim 9
Dependent Claim
17 words
Amplifier/mixer according to claim 3, character- ized in that said plurality of FETs are single gate FETs.
Claim 10
Dependent Claim
87 words
Amplifier/mixer according to.claim 3, character-ized in that said pluralities of FETs (250 - 253) are dual gate FETs, and in which said first and second-artificial transmission line means each has one distributed circuit (220, 230) connected to the RF input terminals (202, 203) and another distributed circuit (220', 230') connected to the local oscillator input terminals (205, 206), the one circuit being connected to a first gate of said dual gate FETs and the other circuit being connected to a second gate of said dual gate FETs.