# US 2006/0152307 A1 · High-frequency module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2006/0152307 A1 - Document ID: US20060152307A1 - Status: Published application - Kind: A1 - Application number: 10/563,217 - Filed: 2004-03-31 - Published: 2006-07-13 - Earliest claimed: 2003-07-08 - Assignees: TKD Corporation - Inventors: Tatsuya Fukunaga; Masaaki Ikeda; Kiyoshi Hatanaka - Web page: https://patentgrep.com/patent/US20060152307A1 ## CPC - H01P 5/107: Hollow-waveguide/strip-line transitions - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) ## Abstract The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide (3) in which a half-wavelength TE mode resonator (2) is formed; an E plane coupling window (4) formed in a wall portion (3a) orthogonal to an H plane out of wall portions (3a) to (3e) constructing the TE mode resonator (2) in the waveguide (3); an output line (5a) provided at the edge on the side of the wall portion (3d) parallel with the H plane on the E plane coupling window (4), and magnetically coupled to electromagnetic waves in the TE mode resonator (2); and another output line (5b) provided at the edge on the side of the wall portion (3e) parallel with the H plane in the E plane coupling window (4), and magnetically coupled to the electromagnetic waves. ## Claims ### Claim 1 An RF module comprising: a waveguide in which a half-wavelength TE mode resonator is formed; at least one E plane coupling window formed in a wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator in the waveguide; one output line provided at the edge on the side of one of the wall portions parallel with the H plane in the one E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at the edge on the side of the other wall portion parallel with the H plane in the one E plane coupling window or another E plane coupling window, and magnetically coupled to the electromagnetic waves. ### Claim 2 (depends on 1) The RF module according to claim 1, wherein only one E plane coupling window is provided as the E plane coupling window, the one output line is provided at the edge on the side of the one wall portion parallel with the H plane in the one E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and the another output line is provided at the edge on the side of the other wall portion parallel with the H plane in the one E plane coupling window, and magnetically coupled to the electromagnetic waves. ### Claim 3 (depends on 1) The RF module according to claim 1, wherein two E plane coupling windows formed in a single wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator are provided as the E plane coupling window, the one output line provided at the edge on the side of one of the wall portions parallel with the H plane in one of the two E plane coupling windows, and magnetically coupled to electromagnetic waves in the TE mode resonator, and the another output line is provided at the edge on the side of the other wall portion parallel with the H plane in the other E plane coupling window out of the two coupling windows and magnetically coupled to the electromagnetic waves. ### Claim 4 (depends on 1) The RF module according to claim 1, wherein a pair of E plane coupling windows formed in a pair of wall portions which are orthogonal to an H plane out of wall portions constructing the TE mode resonator and which are different from each other are provided as the E plane coupling window, the one output line is provided at the edge on the side of the one wall portion parallel with the H plane in one of the pair of E plane coupling windows, and magnetically coupled to electromagnetic waves in the TE mode resonator, and the another output line is provided at the edge on the side of the other wall portion in parallel with the H plane in the other E plane coupling window out of the pair of E plane coupling windows, and magnetically coupled to the electromagnetic waves. ### Claim 5 (depends on 1) The RF module according to claim 1, wherein the waveguide comprises a pair of ground electrodes provided so as to face each other and a conductor for making the pair of ground electrodes conductive. ### Claim 6 (depends on 1) The RF module according to claim 1, further comprising an input line capable of supplying electromagnetic waves in the TEM mode as electromagnetic waves in the TE mode to the waveguide. ### Claim 7 (depends on 6) The RF module according to claim 6, further comprising at least one resonator between the input line and the half-wavelength TE mode resonator. ### Claim 8 An RF module comprising: a waveguide in which a half-wavelength TE mode resonator is formed; at least one H plane coupling window formed in a wall portion parallel with an H plane out of wall portions constructing the TE mode resonator in the waveguide; one output line provided at either the edge on the center side or the edge on the outer periphery side of the TE mode resonator in the one H plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at either the edge on the center side or the edge on the outer periphery side of the TE mode resonator at the edge of either the one H plane coupling window or another H plane coupling window and magnetically coupled to the electromagnetic waves. ### Claim 9 (depends on 8) The RF module according to claim 8, wherein only one H plane coupling window is provided as the H plane coupling window, the one output line is provided at the edge on the center side of the TE mode resonator in the one H plane coupling window and magnetically coupled to electromagnetic waves in the TE mode resonator, and the another output line is provided at the edge on the outer periphery side of the TE mode resonator at the edge of the one H plane coupling window and magnetically coupled to the electromagnetic waves. ### Claim 10 (depends on 8) The RF module according to claim 8, wherein two H plane coupling windows formed in one wall portion parallel with an H plane out of wall portions constructing the TE mode resonator are provided as the H plane coupling window, the one output line is provided at the edge on the center side of the TE mode resonator in one of the two H plane coupling windows and magnetically coupled to electromagnetic waves in the TE mode resonator, and the another output line is provided at the edge on the side of the outer periphery of the TE mode resonator at the edge of the other of the two H plane coupling windows, and magnetically coupled to the electromagnetic waves. ### Claim 11 (depends on 8) The RF module according to claim 8, wherein two H plane coupling windows formed in two wall portions parallel with an H plane in wall portions constructing the TE mode resonator are provided as the H plane coupling window, the one output line is provided at either the edge on the center side or the edge on the side of the outer periphery of the TE mode resonator in one of the two H plane coupling windows, and magnetically coupled to electromagnetic waves in the TE mode resonator, and the another output line is provided at the edge in the other of the two H plane coupling windows, which is the edge on the same side as the edge at which the one output line is provided in one of the H plane coupling windows, and magnetically coupled to the electromagnetic waves. ### Claim 12 (depends on 8) The RF module according to claim 8, wherein the waveguide comprises a pair of ground electrodes provided so as to face each other and a conductor for making the pair of ground electrodes conductive. ### Claim 13 (depends on 8) The RF module according to claim 8, further comprising an input line capable of supplying electromagnetic waves in the TEM mode as electromagnetic waves in the TE mode to the waveguide. ### Claim 14 (depends on 13) The RF module according to claim 13, further comprising at least one resonator between the input line and the half-wavelength TE mode resonator. ### Claim 15 An RF module comprising: a waveguide in which a half-wavelength TE mode resonator is formed; an E plane coupling window formed in a wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator in the waveguide; an H plane coupling window formed in one of wall portions parallel with the H plane in the wall portions; one output line provided at the edge on the side of the wall portion in which the H plane coupling window is formed in the E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at the edge on the side of the outer periphery of the TE mode resonator in the H plane coupling window, and magnetically coupled the electromagnetic waves. ### Claim 16 (depends on 15) The RF module according to claim 15, wherein the waveguide comprises a pair of ground electrodes provided so as to face each other and a conductor for making the pair of ground electrodes conductive. ### Claim 17 (depends on 15) The RF module according to claim 15, further comprising an input line capable of supplying electromagnetic waves in the TEM mode as electromagnetic waves in the TE mode to the waveguide. ### Claim 18 (depends on 17) The RF module according to claim 17, further comprising at least one resonator between the input line and the half-wavelength TE mode resonator. ### Claim 19 An RF module comprising: a waveguide in which a half-wavelength TE mode resonator is formed; an E plane coupling window formed in a wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator in the waveguide; an H plane coupling window formed in one of wall portions parallel with the H plane of the wall portions; one output line provided at the edge on the side of a wall portion facing the wall portion in which the H plane coupling window is formed in the E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at the edge on the center side of the TE mode resonator in the H plane coupling window, and magnetically coupled to the electromagnetic waves. ### Claim 20 (depends on 19) The RF module according to claim 19, wherein the waveguide includes a pair of ground electrodes provided so as to face each other and a conductor for making the pair of ground electrodes conductive. ### Claim 21 (depends on 19) The RF module according to claims 19, further comprising an input line capable of supplying electromagnetic waves in the TEM mode as electromagnetic waves in the TE mode to the waveguide. ### Claim 22 (depends on 21) The RF module according to claim 21, further comprising at least one resonator between the input line and the half-wavelength TE mode resonator.