C\u00e1c chip RF \u0111\u00f3ng vai tr\u00f2 l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a b\u1ed9 thu \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh, v\u1edbi hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb, \u0111\u1ed9 nh\u1ea1y v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i \u0111\u1ecbnh v\u1ecb. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n t\u00edch h\u1ee3p c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb \u0111a ch\u1ebf \u0111\u1ed9 nh\u01b0 BeiDou, GPS, GLONASS v\u00e0 Galileo, nhu c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t cao h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 ki\u1ec3m th\u1eed c\u1ee7a chip RF ng\u00e0y c\u00e0ng gia t\u0103ng. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng ki\u1ebfn tr\u00fac, c\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m th\u1eed c\u1ee7a chip RF \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh, \u0111\u1ed3ng th\u1eddi \u0111\u1ec1 xu\u1ea5t m\u1ed9t gi\u1ea3i ph\u00e1p ki\u1ec3m th\u1eed hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c cao d\u1ef1a tr\u00ean Thi\u1ebft b\u1ecb Ki\u1ec3m th\u1eed T\u1ef1 \u0111\u1ed9ng (ATE).<\/p>\n\n\n\n
M\u1ed9t chip RF \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh \u0111i\u1ec3n h\u00ecnh s\u1eed d\u1ee5ng ki\u1ebfn tr\u00fac t\u1ea7n s\u1ed1 trung gian th\u1ea5p ho\u1eb7c t\u1ea7n s\u1ed1 trung gian b\u1eb1ng kh\u00f4ng v\u1edbi m\u1ee9c \u0111\u1ed9 t\u00edch h\u1ee3p cao, bao g\u1ed3m c\u00e1c m\u00f4-\u0111un nh\u01b0 B\u1ed9 khu\u1ebfch \u0111\u1ea1i ti\u1ebfng \u1ed3n th\u1ea5p (LNA), b\u1ed9 tr\u1ed9n, b\u1ed9 l\u1ecdc t\u1ea7n s\u1ed1 trung gian (IF), M\u1ea1ch kh\u00f3a pha (PLL), Dao \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n \u00e1p (VCO), B\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111\u1ed9 l\u1ee3i bi\u1ebfn \u0111\u1ed5i (VGA) v\u00e0 B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1-s\u1ed1 (ADC). Quy tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u01a1 b\u1ea3n nh\u01b0 sau: c\u00e1c t\u00edn hi\u1ec7u v\u1ec7 tinh y\u1ebfu \u0111\u01b0\u1ee3c \u0103ng-ten thu nh\u1eadn s\u1ebd \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i b\u1edfi LNA, tr\u1ed9n v\u1edbi t\u00edn hi\u1ec7u dao \u0111\u1ed9ng c\u1ee5c b\u1ed9 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i xu\u1ed1ng t\u1ea7n s\u1ed1 trung gian, sau \u0111\u00f3 \u0111\u01b0\u1ee3c l\u1ecdc, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ee3i v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u IF k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 xu\u1ea5t ra b\u1ed9 x\u1eed l\u00fd b\u0103ng t\u1ea7n c\u01a1 s\u1edf.<\/p>\n\n\n\n
C\u00e1c th\u00f4ng s\u1ed1 hi\u1ec7u su\u1ea5t c\u1ee7a chip RF \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng, bao g\u1ed3m:<\/p>\n\n\n\n
H\u1ec7 s\u1ed1 nhi\u1ec5u (NF):<\/strong> X\u00e1c \u0111\u1ecbnh \u0111\u1ed9 nh\u1ea1y c\u1ee7a b\u1ed9 thu, \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong m\u00f4i tr\u01b0\u1eddng t\u00edn hi\u1ec7u y\u1ebfu.<\/p>\n\n\n\n \u0110i\u1ec3m n\u00e9n 1 dB (P1dB):<\/strong> Th\u1ec3 hi\u1ec7n d\u1ea3i \u0111\u1ed9ng tuy\u1ebfn t\u00ednh c\u1ee7a chu\u1ed7i thu t\u00edn hi\u1ec7u.<\/p>\n\n\n\n T\u1ef7 l\u1ec7 lo\u1ea1i b\u1ecf h\u00ecnh \u1ea3nh (IMRR):<\/strong> Cho bi\u1ebft kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf c\u00e1c t\u1ea7n s\u1ed1 h\u00ecnh \u1ea3nh c\u1ee7a b\u1ed9 l\u1ecdc IF.<\/p>\n\n\n\n Ti\u1ebfng \u1ed3n pha:<\/strong> \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tinh khi\u1ebft ph\u1ed5 c\u1ee7a t\u00edn hi\u1ec7u dao \u0111\u1ed9ng c\u1ee5c b\u1ed9, \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ea1ch kh\u00f3a pha (PLL).<\/p>\n\n\n\n \u0110\u1ed9 ph\u1eb3ng trong d\u1ea3i t\u1ea7n v\u00e0 b\u0103ng th\u00f4ng b\u1ed9 l\u1ecdc:<\/strong> Li\u00ean quan \u0111\u1ebfn t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a d\u1ea3i th\u00f4ng t\u00edn hi\u1ec7u v\u00e0 \u0111\u1ed9 ch\u1ecdn l\u1ecdc t\u1ea7n s\u1ed1.<\/p>\n\n\n\n H\u1ec7 s\u1ed1 s\u00f3ng \u0111\u1ee9ng \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o (VSWR):<\/strong> Th\u1ec3 hi\u1ec7n s\u1ef1 ph\u00f9 h\u1ee3p tr\u1edf kh\u00e1ng t\u1ea1i c\u1ed5ng \u0111\u1ea7u v\u00e0o.<\/p>\n\n\n\n Vi\u1ec7c ki\u1ec3m tra chip RF truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng d\u1ef1a tr\u00ean m\u00f4 h\u00ecnh \u201cb\u1ed9 thi\u1ebft b\u1ecb\u201d, trong \u0111\u00f3 c\u00e1c n\u1ec1n t\u1ea3ng ki\u1ec3m tra \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb r\u1eddi r\u1ea1c nh\u01b0 m\u00e1y ph\u00e2n t\u00edch ph\u1ed5, b\u1ed9 t\u1ea1o t\u00edn hi\u1ec7u v\u00e0 m\u00e1y ph\u00e2n t\u00edch m\u1ea1ng, v\u1edbi kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n b\u00e1n t\u1ef1 \u0111\u1ed9ng th\u00f4ng qua giao th\u1ee9c GPIB ho\u1eb7c RS-232. M\u1eb7c d\u00f9 linh ho\u1ea1t, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u1ea1i g\u1eb7p ph\u1ea3i nh\u1eefng h\u1ea1n ch\u1ebf nh\u01b0 h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p, hi\u1ec7u qu\u1ea3 ki\u1ec3m tra th\u1ea5p v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n k\u00e9m, khi\u1ebfn n\u00f3 kh\u00f4ng ph\u00f9 h\u1ee3p cho s\u1ea3n xu\u1ea5t quy m\u00f4 l\u1edbn.<\/p>\n\n\n\n Ng\u01b0\u1ee3c l\u1ea1i, c\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m th\u1eed d\u1ef1a tr\u00ean ATE mang l\u1ea1i m\u1ee9c \u0111\u1ed9 t\u00edch h\u1ee3p cao, kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n th\u1ed1ng nh\u1ea5t v\u00e0 c\u00e1c quy tr\u00ecnh ki\u1ec3m th\u1eed ti\u00eau chu\u1ea9n h\u00f3a, v\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m sau:<\/p>\n\n\n\n Ki\u1ec3m th\u1eed song song hi\u1ec7u su\u1ea5t cao:<\/strong> H\u1ed7 tr\u1ee3 \u0111o l\u01b0\u1eddng \u0111\u1ed3ng b\u1ed9 t\u1ea1i nhi\u1ec1u tr\u1ea1m, gi\u00fap n\u00e2ng cao \u0111\u00e1ng k\u1ec3 n\u0103ng su\u1ea5t.<\/p>\n\n\n\n \u0110\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i:<\/strong> V\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n, k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m cho th\u1ea5y \u0111\u1ed9 nh\u1ea5t qu\u00e1n cao.<\/p>\n\n\n\n Kh\u1ea3 n\u0103ng c\u1ea5u h\u00ecnh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> Th\u00f4ng qua c\u00e1c giao th\u1ee9c k\u1ebft n\u1ed1i nh\u01b0 GPIB, VXI v\u00e0 PXI, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 t\u00edch h\u1ee3p c\u00e1c thi\u1ebft b\u1ecb RF cao c\u1ea5p, \u0111\u1ea3m b\u1ea3o s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 ph\u1ea1m vi ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n Kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng v\u1edbi m\u00f4i tr\u01b0\u1eddng:<\/strong> C\u00f3 th\u1ec3 t\u00edch h\u1ee3p c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 ki\u1ec3m tra hi\u1ec7u su\u1ea5t RF trong c\u1ea3 m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p.<\/p>\n\n\n\n H\u1ec7 th\u1ed1ng ki\u1ec3m tra chip RF d\u1ef1a tr\u00ean ATE th\u01b0\u1eddng bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n sau:<\/p>\n\n\n\n ATE Mainframe:<\/strong> Cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n nh\u01b0 \u0111i\u1ec1u khi\u1ec3n k\u1ef9 thu\u1eadt s\u1ed1, qu\u1ea3n l\u00fd ngu\u1ed3n v\u00e0 thu th\u1eadp d\u1eef li\u1ec7u.<\/p>\n\n\n\n M\u00e1y t\u1ea1o v\u00e0 ph\u00e2n t\u00edch t\u00edn hi\u1ec7u RF:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra c\u00e1c t\u00edn hi\u1ec7u k\u00edch th\u00edch v\u00e0 ph\u00e2n t\u00edch ph\u1ed5 \u0111\u1ea7u ra.<\/p>\n\n\n\n Ma tr\u1eadn chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111i\u1ec1u h\u1ee3p giao di\u1ec7n:<\/strong> Qu\u1ea3n l\u00fd \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u v\u00e0 c\u00e1c k\u1ebft n\u1ed1i ch\u00e2n chip.<\/p>\n\n\n\n Ph\u1ea7n m\u1ec1m \u0111i\u1ec1u khi\u1ec3n v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u:<\/strong> Qu\u1ea3n l\u00fd quy tr\u00ecnh ki\u1ec3m th\u1eed, ghi ch\u00e9p d\u1eef li\u1ec7u v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, c\u00e1c chip RF \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh th\u00f4ng qua giao di\u1ec7n SPI ho\u1eb7c I\u00b2C \u0111\u1ec3 thi\u1ebft l\u1eadp ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 tr\u1ea1ng th\u00e1i \u0111\u1ed9 l\u1ee3i, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh \u0111o l\u01b0\u1eddng tu\u1ea7n t\u1ef1 c\u00e1c th\u00f4ng s\u1ed1 RF. V\u00ed d\u1ee5, th\u1eed nghi\u1ec7m h\u1ec7 s\u1ed1 nhi\u1ec5u s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p h\u1ec7 s\u1ed1 Y ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i n\u00f3ng\/l\u1ea1nh, k\u1ebft h\u1ee3p v\u1edbi ngu\u1ed3n nhi\u1ec5u ch\u00ednh x\u00e1c v\u00e0 m\u00e1y ph\u00e2n t\u00edch ph\u1ed5. Th\u1eed nghi\u1ec7m nhi\u1ec5u pha y\u00eau c\u1ea7u m\u00e1y ph\u00e2n t\u00edch ph\u1ed5 c\u00f3 m\u1ee9c nhi\u1ec5u n\u1ec1n cao \u0111\u1ec3 tr\u00edch xu\u1ea5t c\u00e1c \u0111\u1eb7c t\u00ednh nhi\u1ec5u pha t\u1eeb ph\u1ed5 \u0111\u01b0\u1ee3c kh\u00f3a b\u1eb1ng m\u1ea1ch PLL.<\/p>\n\n\n\n \u0110\u1ed1i v\u1edbi chip RF \u0111\u1ecbnh v\u1ecb GPS, d\u1eef li\u1ec7u \u0111o th\u1ef1c t\u1ebf t\u1eeb h\u1ec7 th\u1ed1ng ATE nh\u01b0 sau:<\/p>\n\n\n\n K\u1ebft qu\u1ea3 cho th\u1ea5y chip RF \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u thi\u1ebft k\u1ebf \u0111\u1ed1i v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh, th\u1ec3 hi\u1ec7n \u0111\u1ed9 tuy\u1ebfn t\u00ednh t\u1ed1t, hi\u1ec7u su\u1ea5t nhi\u1ec5u th\u1ea5p v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ea7n s\u1ed1 cao, nh\u1edd \u0111\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u1ee9ng d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb d\u00e2n d\u1ee5ng.<\/p>\n\n\n\n Khi c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng thi\u1ebft k\u1ebf \u0111a t\u1ea7n s\u1ed1, \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p, \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong vi\u1ec7c ki\u1ec3m tra chip RF c\u0169ng ng\u00e0y c\u00e0ng gia t\u0103ng. C\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m tra d\u1ef1a tr\u00ean ATE \u0111ang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p ch\u1ee7 \u0111\u1ea1o cho vi\u1ec7c ki\u1ec3m tra chip RF trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t, mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao, t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Nh\u00ecn v\u1ec1 t\u01b0\u01a1ng lai, khi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi nh\u01b0 5G-A\/6G v\u00e0 truy\u1ec1n th\u00f4ng v\u1ec7 tinh qu\u1ef9 \u0111\u1ea1o th\u1ea5p (LEO) xu\u1ea5t hi\u1ec7n, vi\u1ec7c ki\u1ec3m tra chip RF s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n \u1edf c\u00e1c t\u1ea7n s\u1ed1 cao h\u01a1n, b\u0103ng th\u00f4ng r\u1ed9ng h\u01a1n v\u00e0 c\u1ea5u h\u00ecnh \u0111a c\u1ed5ng. C\u00e1c h\u1ec7 th\u1ed1ng trong t\u01b0\u01a1ng lai s\u1ebd y\u00eau c\u1ea7u t\u1ed1i \u01b0u h\u00f3a th\u00eam v\u1ec1 t\u00edch h\u1ee3p, hi\u1ec7u ch\u1ec9nh thu\u1eadt to\u00e1n v\u00e0 ch\u1ea9n \u0111o\u00e1n th\u00f4ng minh \u0111\u1ec3 h\u1ed7 tr\u1ee3 nghi\u00ean c\u1ee9u v\u00e0 th\u01b0\u01a1ng m\u1ea1i h\u00f3a c\u00e1c chip RF \u0111\u1ecbnh v\u1ecb v\u00e0 truy\u1ec1n th\u00f4ng th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p>","protected":false},"excerpt":{"rendered":" RF chips serve as the core component of satellite navigation receivers, with their performance directly influencing the positioning accuracy, sensitivity, and anti-jamming capabilities of navigation terminals. With the integrated development of multi-mode navigation systems such as BeiDou, GPS, GLONASS, and Galileo, there is an increasing demand for higher performance and testing efficiency of RF chips. […]<\/p>\n","protected":false},"author":1,"featured_media":1405,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,31],"tags":[36],"class_list":["post-1446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights","category-blog","tag-yvette-wu"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/comments?post=1446"}],"version-history":[{"count":1,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1446\/revisions"}],"predecessor-version":[{"id":1447,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1446\/revisions\/1447"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media\/1405"}],"wp:attachment":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media?parent=1446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/categories?post=1446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/tags?post=1446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}2. <\/strong>Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra truy\u1ec1n th\u1ed1ng v\u00e0 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng ki\u1ec3m tra ATE<\/strong><\/strong><\/h4>\n\n\n\n
3. <\/strong>Ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m ATE v\u00e0 vi\u1ec7c tri\u1ec3n khai c\u00e1c c\u00f4ng ngh\u1ec7 ch\u00ednh<\/strong><\/strong><\/h4>\n\n\n\n
4. <\/strong>D\u1eef li\u1ec7u th\u1eed nghi\u1ec7m v\u00e0 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t trong th\u1ef1c t\u1ebf<\/strong><\/strong><\/h4>\n\n\n\n
Tham s\u1ed1<\/strong><\/strong><\/td> \u0110\u01a1n v\u1ecb<\/strong><\/strong><\/td> V\u00ed d\u1ee5 1<\/strong><\/strong><\/td> M\u1eabu 2<\/strong><\/strong><\/td><\/tr> \u0110\u1ea7u v\u00e0o P1dB<\/td> dBm<\/td> -35.1<\/td> -35.2<\/td><\/tr> H\u1ec7 s\u1ed1 nhi\u1ec5u<\/td> dB<\/td> 4.1<\/td> 4.2<\/td><\/tr> T\u1eeb ch\u1ed1i h\u00ecnh \u1ea3nh<\/td> dB<\/td> 40.1<\/td> 41.2<\/td><\/tr> Ti\u1ebfng \u1ed3n pha @ 1 kHz<\/td> dBc\/Hz<\/td> -86.3<\/td> -83.2<\/td><\/tr> \u0110\u1ed9 ph\u1eb3ng trong d\u1ea3i t\u1ea7n<\/td> dB<\/td> 0.4<\/td> 0.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n 5. <\/strong>K\u1ebft lu\u1eadn v\u00e0 Tri\u1ec3n v\u1ecdng<\/strong><\/strong><\/h4>\n\n\n\n