초록 ▼

Intensive microwave radiation in particular of great band width and energy over a relatively long period of time in the form of long pulse packets with a high pulse repetition frequency and a very high frequency spectrum can be achieved if microwave irradiation is effected during the discharge of a

Intensive microwave radiation in particular of great band width and energy over a relatively long period of time in the form of long pulse packets with a high pulse repetition frequency and a very high frequency spectrum can be achieved if microwave irradiation is effected during the discharge of a capacitive high-voltage generator (35) by way of the antenna (26) into a series of successive capacitors (13) to be connected in parallel. They are preferably constructed in the form of a concentric stack, connected to the antenna (26), of which the outer electrodes (16) which are at a reference potential are in the form of a continuous tube within which annular electrodes (15) are disposed on a carrier (20) in axially spaced relationship with each other in such a way that at the same time they act as the electrodes of arc switches (39) for successively switching on subsequent capacitors (13). The switch response characteristics and the charging time constants of the capacitor ( 13) which is respectively switched on therewith and the number thereof determine the length of the packet of high-frequency individual pulses (40) and thus the radiated microwave energy which can be still further increased by an increase in the capacitance of the capacitors (13).

대표청구항 ▼

What is claimed is: 1. A microwave generator (11) with a radiation antenna (26) which is connected to capacitors (13) which are to be recharged, and a high-voltage generator (35) comprising an energy supplier for charging up the capacitors (13), wherein the high-voltage generator (35) is connected

What is claimed is: 1. A microwave generator (11) with a radiation antenna (26) which is connected to capacitors (13) which are to be recharged, and a high-voltage generator (35) comprising an energy supplier for charging up the capacitors (13), wherein the high-voltage generator (35) is connected through the radiation antenna (26) to a coaxial succession of annular capacitors (13) which are sequentially connectable in parallel with each other, said capacitors (13) possessing first and second electrodes (15, 16), each capacitor having a respective tubular said second counterpart electrode (16) connected together with the other electrode (16) while the first electrode (15) is connectable by a switch (39) to the most closely adjacent further electrodes (15), and wherein disposed in the interior of a respective tubular said second electrode (16) are a number of axially mutually spaced annular said first electrodes (15). 2. A microwave generator according to claim 1, wherein the spacings (17) between the annular electrodes (15) and the end profiles thereof are in the form of arc switches (39). 3. A microwave generator according to claim 1, wherein the capacitor (13) which is located remotest from the energy infeed has an arc switch (39) in relation to a terminating electrode ( 33) which is at the potential of the respective counterpart electrode (16). 4. A microwave generator according to claim 1 wherein the annular first electrodes (15) are of a cup-shaped configuration with a centrally apertured bottom (19) through which said electrodes are arranged in a row on a carrier (20). 5. A microwave generator according to claim 4, wherein spacer elements (21) are arranged on the carrier (20) between the cup bottoms (19). 6. A microwave generator according to claim 5, wherein the cup-shaped electrodes (15) are braced axially on the carrier ( 20) by the provision of an end cap (22) and the spacer elements (21) between said cup bottoms (19). 7. A microwave generator according to claim 4, wherein a frustoconical radiation antenna (26) is centered by the carrier (20) and is electrically connected with the smaller base (27 ) thereof to the first capacitor (13) located adjacent thereto on the carrier (20).